101.
Economic Evaluation in U.S. Health Care
by Pizzi, Laura T | Lofland, Jennifer.
Edition: 1st ed.Material type: Publisher: USA: Jones & Bartlett Learning; 2006Availability: Items available for loan: UVAS Library [Call number: 362.10681 Pizzi 27822 1st 2006 Epidemiology] (1).
102.
Disease Control Priorities in Developing Countries / 2nd ed
by Dean T. Jamison (Editor) | Joel G. Breman (Editor).
Edition: 2ndMaterial type: Publisher: USA: A Copublication of Oxford University Press and World Bank; 2006Availability: Items available for loan: UVAS Library [Call number: 362.1091724 Jamison 19034 2nd 2006 Epidemiology] (3).
103.
Epidemiology of aging : An Ecological Approach
by Satariano, William A.
Edition: 1st ed.Material type: Publisher: [USA] : Jones & Bartlett Learning, 2005Availability: Items available for loan: UVAS Library [Call number: 614.420846 Satariano 23013 1st 2006 Epidemiology] (1).
104.
Teaching Strategies for Health Education and Health Promotion
by Lowenstein, Arlene | Foord-May, Lynn | Romano, Jane.
Edition: 1st ed.Material type: Publisher: [USA] : Jones & Bartlett Learning, 2009Availability: Items available for loan: UVAS Library [Call number: 613.071 Lowenstein 24560 1st 2009 Epidemiology] (1).
105.
Public Health : What It Is And How It Works
by Turnock, Bernard J.
Edition: 5th ed.Material type: Publisher: USA : Jones & Bartlett Learning, 2012Availability: Items available for loan: UVAS Library [Call number: 614.4 Turnock 28839 5th 2012 Public.Health] (1).
106.
Veterinary Clinical Epidemiology / 1st ed
by Smith, Ronald D.
Edition: 1st ed.Material type: Publisher: USA: CRC Press; 1991Availability: Items available for loan: UVAS Library [Call number: 636.08944 Ronald 13643 1st 1991 Epidemiology] (1).
107.
Infectious Disease Epidemiology / 2nd edition
by Nelson, Kenrad E | Williams, Carolyn.
Edition: 2nd ed.Material type: Publisher: UK: Jones & Bartlett Learning; 2006Availability: Items available for loan: UVAS Library [Call number: 614.5 Nelson 19977 2nd 2007 Epidemiology] (2).
108.
A Study Guide to Epidemiology and Biostatistics / 5th ed
by Morton. F. Richard | J. Richard Hebel | Robert J. McCarter.
Edition: 5th ed.Material type: Publisher: USA: Jones and Bartlett Publishers; 2005Availability: Items available for loan: UVAS Library [Call number: 614.4 Morton 17062 5th 2005 Epidemiology] (2).
109.
The Manager's Guide to Health and Safety at Work
by Stranks, Jeremy W.
Edition: 8th ed.Material type: Publisher: India: Kogan Page Ltd; 2006Availability: Items available for loan: UVAS Library [Call number: 658.4080941Jeremy 19072 8th 2006 Public.Health] (3).
110.
Basic Principles and Practical Applications in Epidemiological Research
by Wang, Jung-Der.
Edition: Vol.1Material type: Publisher: Singapore: World Scientific Pub Co Inc; 2002Availability: Items available for loan: UVAS Library [Call number: 614.4072 Wang 17173 Vol.1 2002 Epidemiology] (1).
111.
Clinical Epidemiology : The Essentials
by Robert H. Fletcher | MSc, Suzanne W. Fletcher MD.
Edition: Fourth ed.Material type: Publisher: USA: LWW; 2005Availability: No items available Checked out (1).
112.
Health Economics and Policy with Economic Applications
by Henderson, James W.
Edition: 3rd ed.Material type: Publisher: India: South-Western College Pub; 2005Availability: Items available for loan: UVAS Library [Call number: 338.4336210973 James 23166 3rd 2005 Public.Health] (1).
113.
Epidemiology : Beyond the Basics
by Szklo, Moyses | Nieto, Javi.
Edition: 2nd ed.Material type: Publisher: USA: Jones & Bartlett Learning, 2007Availability: Items available for loan: UVAS Library [Call number: 614.4 Moyses 23012 1st 2007 Epidemiology] (1).
114.
Handbook of Home Health Care Administration
by Harris, Marilyn.
Edition: 5th ed.Material type: Publisher: India: Jones & Bartlett Learning; 2009Availability: Items available for loan: UVAS Library [Call number: 362.14 Harris 24551 5th 2010 Public.Health] (1).
115.
Mausner & Bahn Epidemiology : An Introductory Text
by M.D., M.P.H. Judith S. Mausner | Ph.D., Shira Kramer.
Edition: 2nd ed.Material type: Publisher: USA: W. B. Saunders Company; 1985Availability: Items available for loan: UVAS Library [Call number: 614.4 Judith 15006 2nd 1985 Epidemiology] (1).
116.
Communicable Disease Control in Emergencies : A Field Manual
by Connolly, M.A.
Edition: 1st ed.Material type: Publisher: World Health Organization, 2005Availability: Items available for loan: UVAS Library [Call number: 616.90425 Connolly 22994 1st 2005 Public.Health] (1).
117.
Portable Health Administration
by Ziegenfuss, James | Joseph W. Sassani.
Edition: 1st ed.Material type: Publisher: USA: Academic Press; 2003Availability: Items available for loan: UVAS Library [Call number: 362.10973 James 19065 1st 2004 Public.Health] (1).
118.
Introduction to Epidemiologic Research Methods in Public Health Practice
by Bailey, Susan.
Edition: 1st ed.Material type: Publisher: USA: Jones & Bartlett Learning; 2013Availability: Items available for loan: UVAS Library [Call number: 614.4072 Bailey 28962 1st 2013 Epidemiology] (1).
119.
A Short Textbook of Public Health
by V. K. Muthu.
Edition: 1stMaterial type: Publisher: India: Jaypee Brothers Medical Publishers; 2005Availability: Items available for loan: UVAS Library [Call number: 613 Muthu 22955 1st 2005 Public.Health] (1).
120.
Basic Epidemiology
by Bonita, R | Beaglehole, R | Kjellstrm, T.
Edition: 2nd Material type: Publisher: China: World Health Organization; 2006Availability: Items available for loan: UVAS Library [Call number: 614.4 Bonita 23647 2nd 2006 Epidemiology] (1). Checked out (1).
121.
Reproductive Epidemiology : Principles and Methods
by Merrill, Ray M.
Edition: 1stMaterial type: Publisher: USA: Jones & Bartlett Learning; 2010Availability: Items available for loan: UVAS Library [Call number: 614.4 Merrill 24557 1st 2010 Epidemiology] (1).
122.
Public Health Laboratories : Analysis, Operations and Management
by Jenkins, Wiley D.
Edition: 1stMaterial type: Publisher: USA: Jones & Bartlett Learning; 2011Availability: Items available for loan: UVAS Library [Call number: 362.10721 Wiley 25086 1st 2011 Public .Health] (1).
123.
Hospital and Health Care Administration
by Gupta, Shakti | Sunil Kant.
Material type: Publisher: Delhi: Jaypee Brothers Medical Publishers; 1998Availability: Items available for loan: UVAS Library [Call number: 344.73041 Gupta 15314 1st 1998 Public Health] (1).
124.
Principles and Practice of Epidemiology : An Engaged Approach
by Rossignol, Annette.
Edition: 1st.Material type: Publisher: Singapore: McGraw Hill; 2007Availability: Items available for loan: UVAS Library [Call number: 614.4 Rossignol 20073 1st 2007 Epidemiology] (1).
125.
Veterinary Epidemiology : Principles and Methods
by Martin, Wayne S | Meek, Alan H | Willeberg, Preben.
Material type: Publisher: India: International Book Distributing Co; 1993Availability: Items available for loan: UVAS Library [Call number: 636.08944 Martin 14946 1st 1993 Epidemiology] (2).
126.
Retrospective Study Of Fatal Dengue Hemorrhagic Fever In Lahore City
by Shumaila Abdusattar (2012-VA-523) | Prof. Dr. Mansur-ud-din Ahmad | Prof. Dr. Muhammad Athar Khan | Dr. Jawaria Ali Khan.
Material type: ; Literary form:
not fiction
Publisher: 2014Dissertation note: Dengue fever is one of the most common mosquito-borne viral diseases of human beings. It has become a major reason for public health concern internationally over the recent years because of disease morbidity and mortality. Globally around 2.5 billion people are living in areas where dengue viruses can be transmitted. Spread of mosquito vectors & viruses in geographical distribution are two main reasons of rise in incidence and prevalence of dengue fever & appearance of dengue hemorrhagic cases. Urban areas of the tropics have been identified to be highly endemic. According to estimates made by WHO around 50–100 million infections of dengue are prevalent every year globally. (Deen et al. 2006) In Pakistan first dengue outbreak was reported in Karachi in 1994 as environmental conditions are conducive to Aedes mosquito breeding. Economic and security related migration introduced virus to Lahore as well. According to Punjab Health Department 590339 suspected cases were reported in Lahore & 21685 confirmed by serology. It has been observed that 5-10% of these cases develop DHF.(Mahmood et al. 2013)
Dengue is mainly transmitted by mosquito vector i.e. Aedesaegypti and can also be transmitted by A.albopictus to a lesser extent. Virus that causes dengue has four different types that are closely related to each other.Infected female mosquitoes transmit this virus to human beings through bite.An infected mosquito can transmit this virus to humans for the rest of its life. Symptoms of dengue range from very mild fever to very high fever including intense headache, retro-orbital pain, muscular and joint pain, and rashes. There is no vaccine or any specific medicine to treat dengue. Patients having dengue fever are advised to take rest and drink ample fluids. They are advised to use paracetamol in order to reduce high grade fever or visit the physician if fever persists. Recovery from infection by one provides lifelong immunity against that serotype but confers only partial and transient protection against subsequent infection by the other three. There have been enough proofs showing that subsequent infection increases the risk of severity of disease which can result in DHF (WHO).
Leaking of plasma, fluid accumulation, respiratory distress, and intense bleeding and organ impairment makes severe dengue a fatal complication. Warning signs includes decrease in temperature (below 38°C/ 100°F), severe abdominal pain, rapid breathing, bleeding gums, malaise, and restlessness,continuous vomiting and hematemesis. These can occur three to seven days after first symptom recognition. In order to prevent complications and minimize the risk of death adequate and timely health care is required in next 1-2 critical days.(Halstead 1980)
In 1950s when dengue epidemics occurred in the Philippines and Thailand then Dengue hemorrhagic fever was first identified. Till 1970 nine countries had encountered epidemic DHF and this number has increased more than four times and keeps on rising. Today rising number of DHF cases are causing increased dengue outbreaks in the Americas, and in Asia, where all four dengue viruses are endemic. DHF has turn out to be a prominent reason of hospitalization and demise among kids in several states.In Asia, widespread DHF has enhanced geologically from Southeast Asian regions to west China. Various regional states of the South and Central Pacific have encountered significant or slight DHF outbreaks.In previous twenty years deterrence and management has come to be more immediate with the escalating geographical spreadof dengue and dengue hemorrhagic fever and higher ailment occurrence (Gubler 2002).
In the absence of bleeding or organ manifestation, DHF is medically challenging to diagnose, and the numerous etiologic agents can barely be distinguished by clinical tests. The specified diagnosis of DHF depends mainly on laboratory testing.(Drosten et al., 2002)
Availability: Items available for loan: UVAS Library [Call number: 2211,T] (1).
127.
Epidemiology for Public Health Practice
by Friis, Robert H | Sellers, Thom.
Edition: 5th ed.Material type: Publisher: USA : Jones & Bartlett Learning, 2014Availability: Items available for loan: UVAS Library [Call number: 614.4 Friis 30812 5th 2014 Epidemiology] (1).
128.
Infectious Diseases of Animals : Diseases Due to Bacteria
by Stableforth, A. W | Galloway, Ian Alfred.
Edition: 1stMaterial type: Publisher: UK: Butterworths Scientific Publications; 1959Availability: Items available for loan: UVAS Library [Call number: 636.08969 Stableforth 6718 Vol.2 1959 Microbiology] (3).
129.
Status Of Awareness Among Zoo Workers About Zoonotic Diseases
by Tahir Khan (2012-VA-806) | Prof. Dr. Mansur Ud Din Ahmed | Shelly Saima Yaqub | Dr. Shakera Sadiq Gill | Prof. Dr. Aftab Ahmad Anjum.
Material type: ; Literary form:
not fiction
Publisher: 2014Dissertation note: A zoo is a place where wild animals are kept for exhibition purposes to the public.It includes: aquaria, sanctuaries, bird gardens and safari/wildlife parks. These are centers for wild animal’sconservation and for public recreation and education (Cuaron2005). Epidemiologists, wildlife biologists, veterinarians and conservationists used these for research purpose.According to an estimate Pakistan is maintainingapproximately 27 zoos, deer parks, etc.(Walker 2014).
Zoonotic diseases are those which are naturally transmitted from animals to human beings and vice versa. The word Zoonosis is derived from the Greek word zoon (animal) and nosos (disease). The diseases which are transferred from human beings to animals are known as Zooanthroponotic (Greek “Zoon” = animal, “anthrópos” = man, “nosos” = disease) diseases e.g. tuberculosis, measles, giardiasis and amoebiasis. On the other hand the diseases which are transmitted from animals to human beings are known as anthropozoonotic diseases e.g. anthrax, AIDS, psittacosis and rabies (Epstein and Price 2009).
Zoonosis can be classified according to their circulation in the ecosystem. These are either classified as synanthropic zoonosis, with an urban (domestic) cycle in which the source of infection are domestic and synanthropic animals (e.g. cat scratch disease, urban rabies and zoonotic ringworm) or exoanthropic zoonosis, with a sylvatic (feral and wild) cycle in natural foci outside human habitats (e.g. wildlife rabies, arbovirus, lyme disease and tularemia). Some zoonotic diseases can circulate in both urban and natural cycles (e.g. chagas disease and yellow fever).
A review study identified that 1415 species of infectious organism are pathogenic to human beings. This includes 217 viruses and prions, 538 bacteria and rickettsia, 307 fungi, 66 protozoa and 287 helminthes. Out of these, 868 (61%) are zoonotic in nature (Taylor et al. 2001). More than 60% of the emerging human infectious diseases are zoonotic in nature and 70% of their reservoirs are wild animals (Cutler et al. 2010).
The reservoirs of several zoonotic diseases are wild animals whose causative agents are viral, rickettsial, chlamydial, bacterial, parasitic and mycotic(Bengis et al. 2004). Zoonotic diseases like tuberculosis, plague and rabies have badly affected the mankind since ancient times and the reservoirs of all of these are wild animals (Stone et al. 2009). Some zoonotic diseases in human beings are self-limiting whose signs range from few days to a long term illness e.g. gastroenteritis caused byGiardia, Cryptosporidium, and Salmonella species.Some zoonotic diseases may cause abortions (Toxoplasmosis) and fatal encephalitis (Japanese encephalitis). Whereas some zoonotic diseases may causes high mortality e.g. Marburg hemorrhagic fever(MacNeil and Rollin 2012). Zoonotic diseases cause death not only in their natural hosts but also in endangered wild animal species near to extinctione.g. Ebola virus cause high mortality in monkeys (Nunn et al. 2008). It is clear from various studies in different zoos that both anthropozoonotic and zooanthroponotic transmission can occur (Adejinmi and Ayinmode 2008).
Zoonotic agents have potential to be used for bioterrorism. The bioterrorism attack is aimed to cause fear, destabilization, stress, illness and death in people, animals and plants. (Lin 2014). Air, water and food may be the warfare biological vehicles for its spread. During World War 1, anthrax was used as a biological warfare in animal populations. Glanders and typhoid were also used for bioterrorism attack in 1910 and 1970, respectively. Several cases of bioterrorism also occurred in the United States due to anthrax in September and October 2001 (Spencer 2007).
A Zoo worker should haveknowledge of the transmission of the disease to avoid its transmission. The common ways of the transmission are direct mode (ingestion, animal bites, inhalation, needle prick injuries and skin contact) and indirect mode (vector borne, fomite, long distanceand airborne transmission). In zoo management, the role of veterinarians is extremely useful. Their job exposes them to several health-related threats during routine operations. e.g. animal bites, needle prick injuries, back injuries, exposure to anesthetic gases and even mortality in certain cases (Hill et al. 1998; Kabuusu et al. 2010).
The personal protective equipment’s are not used during restraining, treatment, necropsy and cleaning the animal enclosures. It may increases the chances of zoonotic diseases to zoo workers and veterinarians. The disposal of wild animal carcasses, organs, unused food, feces and urine by unscientific methodsenhances the process of pathogens transmission(McLaughlin 2002). Laboratory personnel can also be infected with zoonotic diseases due to lack of good laboratory practices in wildlife disease diagnostic laboratories(Rietschel 1998).
Therefore, prevention and control of zoonosis must be an important part of zoo occupational health and safety measures. Preventive measures can be either general or specifically designed for a particular disease. It is possible to prevent many of the zoonotic diseases by following basic hygiene and sanitation procedures.The present study was conducted to determine knowledge, attitude, practice and experience levels about zoonosis among zoo workers of district Lahore(Lahore Zoo, Jallo Wildlife Park and Lahore Safari Zoo).
Availability: Items available for loan: UVAS Library [Call number: 2229-T] (1).
130.
Epidemiological Investigation And Risk Factor Analysis Of Brucellosis In Large Ruminants And Their Attendants At Govt. Livestock Farms In Punjab
by Muhammad Raashid (2007-VA-496) | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq | Dr. Sehrish Firyal.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Pakistan has been renowned as an agricultural country. It is rich in livestock sector having fairly large populations of domestic animals. Among these, populations of cattle and buffalo are 38.3 and 33.7 million respectively. The importance of cattle and buffalo cannot be denied at any level as these are the principal farming animals and milk and beef are widely consumed locally in the country. The estimated annual milk production of cattle and buffalo include 17.372 and 30.462 million tonnes respectively and a combined 1.829 million tonnes beef for human consumption during 2012-2013 (Pakistan Economic Survey 2012-2013).
Brucellosis, a worldwide bacterial zoonosis, is one of the most serious diseases causing huge loss to national economy and human beings among developing countries (Wu et al. 2013). The disease is endemic in Middle East, Central Asia, Africa, Mediterranean region and parts of Latin America (Gwida et al. 2010). Brucellae are Gram-negative bacteria, facultative anaerobic and intracellular pathogens. These show a wide range of host specificity. These coccobacilli measure from 0.6 to 1.5 µm long and 0.5 to 0.7 µm wide. Eight species have been identified in the genus Brucella such asBrucella abortus(B. abortus affecting cattle and buffalo), B. melitensis (sheep and goats), B. ovis (sheep), B. suis (swine), B. canis (dog), B. neotomae (desert rats), B. ceti (cetaceans) and B. pinnipedialis (pinnipeds) (Blasco 2010). This wide range of species covers almost all domestic animals however cats have found resistant. Generally it is considered as a reproductive problem in both male and female animals (Ficht 2003).
Brucellosis has been listed as the second most serious zoonotic disease in the world after rabies by OIE (OIE 2009). B. abortus, the primary cause of Brucellosis in large ruminants, (cattle and buffalo), remains not only a significant threat as a source of human illness but also risks economy of the country (Makita et al. 2011). Present estimates of economic loss in meat and milk production resulting from Brucellosis are $800 million annually in the United States(OIE 2009). The incidence of the disease can be correlated to several factors including demographic and geographic factors(Soomro et al. 2014). Seroprevalence of the disease has been reported in different regions of Pakistan and ranges 3.25 to 4.4%(Naeem et al. 1990).
Brucellosis in cattle and buffaloes can be recognized clinically by an abortion usually occurring form 6 months and onwards i.e. last trimester of pregnancy (Soomro et al. 2014). Brucellosis is principally a disease of sexually mature animals as it affects mainly the reproductive system and fertility of the animals. It significantly reduces the survival rate of newborns and also the milk yield (Sikder et al. 2012). Greyish white mucoid or mucopurulent discharges from the vagina, prior to parturition of cow, may show the clinical patterns of disease along withnormal patterns of parturition like swelling of the vulva, relaxation of pelvic ligament, enlargement of udder and discharge from the vulva (Shafee et al. 2012).
Human infections as a result of Brucellosis range more than 500,000 annually round the world (Abo-Shehada and Abu-Halaweh 2011). Brucellosis can cause a wide range of symptoms similar to the flu and may also include fever (39-40°C), night sweats, headache, back pain and physical weakness. Severe form of infection may result in involvement of the central nervous system or the lining of the heart (Soomro et al. 2014). It is one of the principal public health problems for an agricultural country like Pakistan, where majority of the population is engaged in livestock farming (Shafee et al. 2012).
Brucellosis in humans is a severely debilitating condition that usually requires prolonged treatment involving a combination of strong antibiotics. The treatment results in permanent and disabling sequel, and also in significant medical expenses along with loss of income due to loss of working hours. Brucellosis can be transmitted to humans by ways of inhalation, direct contact with infected animals or contaminated products of conception and ingestion of unpasteurized dairy products and undercooked meat or meat products (Gwida et al. 2010; John et al. 2010). Brucellosis can also be transmitted from infected animals to human beings who are in close contact with animal secretions like infected vaginal secretions, blood, urine, feces, aborted fetus, or those who consume unpasteurized milk or other raw milk products. Shepherds, milkmen, butchers, knackers, veterinary assistants, and abattoir workers are at high risk (Agasthya et al. 2007)
Availability: Items available for loan: UVAS Library [Call number: 2245-T] (1).
131.
Action Research in Healthcare
by Koshy, Elizabeth | Koshy, Vals | Waterman, Heathe.
Edition: 1st ed.Material type: Publisher: India: SAGE Publications Ltd; 2011Availability: Items available for loan: UVAS Library [Call number: 362.1072 Koshy 24674 1st 2011 Epidemiology] (1).
132.
Animal Disease Surveillance and Survey Systems : Methods and Application
by Salman M. D.
Edition: 1st ed.Material type: Publisher: USA: Wiley-Blackwell; 2003Availability: Items available for loan: UVAS Library [Call number: 636.0894 Salman 18851 1st 2003 Epidemiology] (1).
133.
GIS And Spatial Analysis In Veterinary Science
by Durr,P.A.
Edition: 1st ed.Material type: Publisher: UK: CABI Publishing; 2004Availability: Items available for loan: UVAS Library [Call number: 636.08944 Durr 17177 1st 2004 Epidemiology] (2).
134.
GIS And Spatial Analysis In Veterinary Science
by Durr,P.A | Gatrell.A.
Edition: 1st ed.Material type: Publisher: UK: CABI International; 2004Availability: Items available for loan: Pattoki Library [Call number: 636.08944 Durr 19994 1st 2004 L.Production] (1).
135.
Incidence Of Dog Bite Injuries Reported In Tertiary Care Hospitals
by Ambreen Shahzadi (2012-VA-440) | Dr. Mamoona Chaudhry | Dr. Shakera Sadiq Gill | Dr. Muhammad Ijaz.
Material type: ; Literary form:
not fiction
Publisher: 2014Dissertation note: Animal bites people should be considered an important public health problem. Moreover, the number of pets, specifically the dog, is increasing. (Palacio J et al., 2003).Animal bites, particularly dog bites, are a major public health problem throughout the world (Morgan and Palmer, 2007). Animal bites and scratches, even when they are minor, can become infected and spread bacteria to other parts of the body.
Dog attacks, by street or domestic dogs, with injuries from very minor to significant and severe to fatal, are not uncommon. According to WHO report, ten million people are bitten by animals (especially Dogs) around the world, considered for prophylaxis and treatment against rabies and almost (55,000) people die from this disease annually (Mohdjunaid et al., Oct 2012).
6.2 Hypothesis:
The incidence of dog bite injuries is high in densely populated towns of Lahore when compared to less populated towns of Lahore.
6.3 Methodology:
General information about patients and possible causes was collected on a structured questionnaire. All the dog bite victims that were come to emergency ward during three months period were included in the study. Questionnaire include closed questions about the demographics of the victims, circumstances of bite incidents, body parts injured and the degree of injury, type of dog, history of previous bites, the level of knowledge about rabies, post bite home treatment (washing of bite wound etc.) prior to visited the hospital for medical treatment and post exposure treatment at hospital. The densely populated area (ravi town, data ganj bakhsh, shalimar town, samanabad etc) and less populated area (gulberg, azizbhati town, wagah, Allama iqbal town, & nishtar) was be compared.
6.4 Statistical Design
Cumulative incidence was calculated as described by Leon Gordis (2008). Chi square test was applied on the data by using SPSS (version 19.0).
6.5 Results
In this study, cumulative incidence is 4.653 per 1000 popluation, most of the dog bite victims were male 79.9 % as compare to female 20%.5.7% cases visited Mayo Hospital’s emergency department during the study period, 4.5% cases were reported in Services Hospital and 89.9% cases from IPH Lahore. In this the higher percentage was the patients who were illiterate (47%) and very few patients were those who had intermediate and above education (6%). The occupation of the patients who were attended Hospitals, were farmers (31.56%). The 24% patients were those who had bitten once before in previous years. In those 24% patients 19.2 % those who were bitten by dog and 5% were bitten by others (cats, horse, donkeys, etc). Most of the victims were bitten in rural area (65%) and most of the injuries were from stray dogs (65.9%). Most of the victims had provoked bite (74%) and the high frequency were recorded that the cases had type II wound category (deep scratch but no bleeding) 82%. The cases received treatment in different hospitals were RIG (18%), Tetanus toxoid (32%), Antibiotic (78%) and Suturing (7.9%).
Most of the patients were from Ravi town Lahore that is one of the highly densely populated areas of Lahore (38%) and very few cases reported from Nishtar town Lahore (0.5%). The demographic location and the hospitals had no association as the results were insignificant (p-value>0.05). Most of the cases who were bitten by dog and they already bitten by dog in previous years, significant in relation as p-value <0.05. The association between dog status and biting animal was significant, as mostly biting dogs were stray dogs and most of the bite was provoked, there was significant association between biting animal and biting type (p-value<0.05).
Availability: Items available for loan: UVAS Library [Call number: 2285-T] (1).
136.
Prevalence Of Newcastle Disease In Backyard Poultry In District Mardan
by Muhammad Saeed (2013-VA-439) | Dr. Mamoona Chaudhry | Dr. Abdul Sajid | Prof. Dr. Mansur Ud Din Ahmad | Dr. Jawad Nazir.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2015Dissertation note: Newcastle disease (ND) is very important viral diseases of poultry industry in the rural areas of Pakistan It is caused by Avian Paramyxovirus serotype 1 (APMV-1) of the genus Rubulavirus belonging to the family Paramyxoviridae. The outbreaks of ND are usually associated with various factors e.g. confinement of birds, mode of disposal of diseased birds, cadavers and poultry fecal matter; dry seasons in the dry zones just before the rains; wind conditions; short irregular temperature changes and the refilling of farms with chickens from the markets. The present study was conducted in randomly picked 30 clusters in three Union councils of Tehsil Takht Bhai District Mardan to investigate the seroprevalence of Newcastle Disease virus and its potential risk factor in non-vaccinated chicken raised under backyard management system. Serum were observed through Haemagglutination inhibition test for the confirmation of prevalence of Newcastle Disease. 165 were found seropositive and 45 were seronegative (antibody titres of 4 or less) for ND out of 210 sera samples. Overall weighted seroprevalence was found as 76.836%, 95% Cl (66.238-87.433) using R software. This means that NDV was circulating in backyard poultry of district Mardan, while data on risk factor were obtained through a detail predesigned questionnaire from the owner in a face to face interview translated into local language (Pushto) after taking written consent from the owner.
To identify the risk factors for Newcastle Disease seroprevalence, multivariable logistic regression were performed. The result showed that live birds market stall near houses was strongly associated with NDV seroprevalence. Source of water from both type (public water supply and street channels) were also found strongly associated. A strong association was also observed between NDV seroprevalence and water source of street channels. Result also showed that cleaning of backyard premises was a protective factor against NDV with OR < 1. Another
Summary
38
strong risk factor was live birds market stall near houses (OR 33.64, 95 % Cl: 6.49-174.28). The largest confidence interval showed less precision which could be due to less no. of samples. The identified estimate of seroprevalence of ND and its associated potential risk factor will be communicated to concerned persons through publication. Availability: Items available for loan: UVAS Library [Call number: 2292-T] (1).
137.
Seroprevalence Of Dengue Fever In Tehsil Jatoi District Muzaffargarh, Punjab
by Muhammad Shahzad Ahmad Khan (2013-VA-848) | Dr. Mamoona Chaudhery | Dr.Tayyaba Ijaz | Dr. Hassan Mushtaq | Dr. Waseem Shahzad.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Dengue is caused by single stranded RNA virus that belongs to genus flavivirus and is a mosquito born disease. There are four serotypes of dengue virus DENV-1, DENV-2, DENV-3, and DENV-4. Signs and symptoms of dengue virus are high fever, severe headache, rash, muscle pain, retro-orbital pain and leucopenia. Incubation period is 4-7 days. There are three type of dengue fever named as dengue fever, dengue hemorrhage fever and dengue shock syndrome. More severe form of dengue is dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS).
Hypothesis of this study was that dengue virus is prevalent in Tehsil Jatoi District Muzaffargarh. Data was collected from individual in a face to face interview. Thirty clusters were selected and in each cluster seven (7) elementary unit (individuals) were sampled. A cross-sectional survey was conducted and blood samples were collected from individuals by using aseptic technique. The blood was drawn from the antecubital vein, from elbow or from the back side of a hand. Swab was applied to avoid bleeding.
A total of 210 apparently healthy individuals were sampled from thirsty clusters and serum was observed through ELISA for confirmation of Dengue fever disease. 27 were found positive and 183 were negative for DF out of 210 sera samples.
The data analysis was done by using “R” software. Multivariable logistic regression was conducted to estimate the effect of each explanatory variable on the outcome. Overall weighted seroprevalence was recorded as 13.54 %, (95% CI, 8.144-18.92). This means that DENV was circulating in Tehsil Jatoi district Muzaffargarh, while data on risk factors were obtained through
Summary
54
a detailed predesigned questionnaire from participants in a face to face interview translated into local language (Saraiki) after taking written consent from the individual.
To identify the risk factors for Dengue fever disease seroprevalence, multivariable logistic regression were performed. The result showed that age (OR: 3.084, 95% CI: 1.180-8.061) was risk factors for dengue fever and anti-mosquito spray (OR: 0.349, 95% CI: 0.122-0.997) was protective (OR<1) factor against dengue fever disease. Variable with significant univariable relationship at P < 0.25 were selected for inclusion in the final model
The study had provided successful estimate about the risk factors and seroprevalence of Dengue Fever. The finding of above study will be published. These finding could be utilized by the policy maker to control the epidemic of DF in population. Availability: Items available for loan: (1), UVAS Library [Call number: 2293-T] (1).
138.
Communicable Disease Epidemiology and Control : A Global Perspective
by Webber, Roger.
Edition: 3rd edMaterial type: ; Format:
print
Publisher: UK: CABI, 2011Availability: Items available for loan: UVAS Library [Call number: 614.5 Webber 27821 4th 2012 Epidemiology] (2).
139.
A Study On The Incidence Of Zoonotic Tuberculosis To Assess The Associated Risk Factors And Zoonotic Potential Of Bovine Tuberculosis In Lahore
by Syeda Anum Hadi (2013-VA-04) | Dr. Hassan Mushtaq | Dr. Abdul Majeed Akhtar | Professor Dr.Mansur-ud-din Ahmad | Dr. Aamir Gafoor Bajwa.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2015Dissertation note: In the review by O’Reiley and his colleagues, Tuberculosis has been defined as a disease that affects the respiratory system foremost and its route of transmission from one animal species to another is by the airborne route along with consumption of un-pasteurized milk (O'Reilly, 1995) (De la Rua-Domenech, 2006) (Thoen et al. 2006). The review states that Mycobacteriumbovis causes tuberculosis in bovines as well as a number of wild animals such as goats, cats, dogs, pigs, buffalo, badgers, possums, deer, bison and non-human primates but most importantly it causes tuberculosis in humans. This makes the disease of significant public health importance due to its zoonotic nature.
The study was conducted in two of the largest dairy colonies in Lahore- Rakhchandra and Harbanspura dairy colony. 400 dairy animals (lactating) were selected from the target areas. 200 animals per field were chosen through convenience sampling. The research was divided into two parts. Phase 1 was concerned with screening of animals for bovine tuberculosis through performance of comparative intradermal tuberculin test (CIDTT) and followed by culturing of milk samples from animals that came positive. Phase 2 was concerned with testing of all human subjects who were in contact with the positively screened livestock. Since none of the human subjects showed any of the signs for tuberculosis, no testing of the humans could be performed.
The first step to animal testing was concerned with the screening of selected animals with comparative cervical intradermal tuberculin test (CIDTT). This involved the intradermal injection of bovine tuberculin purified protein derivative (PPD) and the subsequent detection of swelling (delayed hypersensitivity) at the site of injection 72 hours later (Anonyms, 2008a). The test was considered positive if the difference between the swellings on the two sites was more than 4mm and it was the mammalian site that showed more swelling. Once the results were read, the dairy farmers were asked a set of questions designed to identify risk-factors for zoonotic tuberculosis. The farmers responded to nearly all the questions that were posed to them.
Milk sample was collected from the animals that tested positive. 50 ml of milk was collected from the positive animals. Once collected, the milk bottles were quickly capped and labeled and put in the ice-box before being transported to Provincial Tuberculosis Reference Laboratory in Lahore. Staining followed by culturing of milk samples for the isolation of Mycobacterium bovis was then proceeded with. For the purpose of culturing two types of media were prepared before-hand-Lowenstein Jensen (LJ) media and LJ-pyruvate media. LJ medium allows the growth of Mycobacterium tuberculosis, whereas LJ with pyruvate medium allows the growth of Mycobacterium bovis.
Petroff’s method was employed for the processing of milk samples which originally is used for sputum processing (Anonyms, 2009). The process was altered to suit our requirements. Once processed 300ul of pipette tips were used to place 100ul of processed sample on pre-marked slides for ziehl-neelson staining and 120ul on pre-made media slants a total of 4 bottles, 2 each of LJ media and LJ pyruvate media for duplication of results and to act as control. The bottles were checked for growth every week on Monday till 8 weeks of time.
At Rakhchandra dairy colony the tuberculin test done on 200 animals revealed only three (3) positive animals. Thus the prevalence of TB in Rakhchandra came out to be 1.5%. Out of 200 animals in Harbanspura dairy colony, six (6) animals showed hypersensitivity reaction and were positive. Prevalence of TB in Harbanspura came out to be 3%. Out of 400 animals tested, 90 were cattle and 310 were buffaloes. Only buffaloes showed hypersensitivity reaction to tuberculin. None of the cows tested came out to be tuberculin positive. In this particular study, the prevalence of TB on the basis of tuberculin test in buffalo was 2.9% where as in cattle it was 0%. When milk was collected and processed from the above mentioned nine (9) animals, the results showed a different picture. None of the cultures showed any signs of growth by 8 weeks of incubation. All nine milk samples after cleaning were stained by ZN staining and observed under microscope for the presence of mycobacterium, none came out positive.
The Basic Health Units (BHU) in each of the colony were contacted and it was found that in the last 10 years less than 10 patients who were suspected to have tuberculosis were referred to District Health Quarter (DHQ).
Even though a higher percentage (44.44%) of farmers in Harbanspura was recorded to have some knowledge about the zoonotic aspect of tuberculosis as compare to those in Rakhchandra (22.22%), yet a higher number of tuberculin positive animals was found in Harbanspura (6 versus 3). The economic status of farmers in Harbanspura was comparatively higher with 33.33% of farmers earning more than 1 lakh rupees per month, whereas in Rakhchandra this figure stood at 27.78%. This might be a mere chance of co-incidence but it also implies the unwillingness of farmers to apply biosecurity measures at their farms. Lack of willingness to take such precautionary steps places the farmers and their animals in great peril, since in the last six months alone 66.67% of the farmers in Harbanspura had purchased at least one animal, which is enough to bring disease in an un-infected herd. Only 27.78% of farmers in Rakhchandra had purchased animals on the other hand. Also only 77.78% of farmers in Harbanspura would clean the dung from the farms twice a day whereas 100% Rakhchandra farmers would cleanup twice a day. The tuberculin positive animals were found to be spending most time of their day in filthy places. Their sheds were not cleaned regularly. Heaps of dung and ground wet with urine was observed on every visit. It exposed animals to numerous infections and 11.11% of animals in Harbanspura and 44.44% of animals in Rakhchandra were suffering from unidentified chronic illnesses. Farmers said that they preferred to sell such animals to butchers (85.8% combined percentage), rather than burying after culling (3.7% combined percentage). Deworming was not considered a mode of disease prevention amongst the farmers since only 22.22% of all farmers bothered to deworm their animals. The animals were seen to not having a score of above 2.5 when their body scoring was done (Scale 1-5). The one blissful factor discovered was the habit of nearly all farmers (92.59%) preferred to boil milk before consumption. Even dairy products were made from boiled milk (81.48%). This single factor could be the reason why the farmers consuming otherwise contaminated milk was still in such a glowing healthy condition.
The study allowed us to get a measure of the status of disease in lactating animals and to investigate the conditions that prevail in the two dairy colonies. It showed a difference in the prevalence of disease in Harbanspura and Rakhchandra famous for providing milk to Lahore city. This was scrutinized through a detailed analysis of farmer habits and environment of animals in both the fields. This study would permit upcoming researchers to have an up-to-date status of tuberculosis in the dairy colonies.
Availability: Items available for loan: UVAS Library [Call number: 2321-T] (1).
140.
Medical Ethics and Humanities
by Paola, Frederick Adolf | Walker, Robert | Nixon, Lois LaCivita.
Edition: 1st ed.Material type: ; Format:
print
Publisher: USA: Jones & Bartlett Learning, 2009Availability: Items available for loan: UVAS Library [Call number: 174.2 Paola 23662 1st 2010 Epidemiology] (1).
141.
Seroprevalence Of Brucellosis In Pregnant And Aborted Women Of Rural And Urban Areas In Three Selected Districts Of Punjab Pakistan
by Shakeela Anjum (2006-VA-172) | Dr. Iahtasham khan | Prof. Dr. Abdul shakoor | Prof. Dr. Muhammad Younus.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Brucellosis is an important zoonotic disease of animals and human. According to OIE
(Office International des Epizooties), it is the second most important zoonotic disease in the
world after rabies Brucellosis is more common in countries with Poorly standardized animal
and public health programme. Human Brucellosis caused by B. abortus, B. abortus are small,
non-motile, aerobic, facultative intracellular, Gram-negative cocobacilli.
The symptoms of human brucellosis are undulant fever, headache, weakness, body
pain, and sometimes endocarditis, orchitis, or arthritis may develop. Prolonged use of
combination of antibiotics and human vaccine is main control measure strategies for human
brucellosis. This disease is under investigated and hence people are ignorant of this insidious
problem. Serological surveillance is a good and cheap tool to diagnose this problem. There is
also need to know that which diagnostic antigen (Pakistani or French) is more sensitive and
specific from disease eradication and control point of view. Unfortunately annual incidence
of brucellosis in whole Pakistan is unknown but they are expected above 2 per 100,000
people. The hypothesis of present study was that brucellosis is considered to be endemic in
Pakistan but there is no data available about seroprevalence of brucellosis in pregnant,
aborted, rural and urban women with different risk factors in Pakistan.
In present study sero-screening of total 199 serum samples of pregnant and women
presenting with abortions from district Jhang, district Chinoit and district Faisalabad. Test
was performed on 199 samples which showed 40 (20%) positives by RBPT (Pakistan) and 42
(21%) positives by RBPT (France) (Table 4.4). While the indirect modified ELISA showing
5 (2.5%) positive samples. All sera tested positives (5) with modified i-ELIA were also tested
positives with another specific and highly expensive ELISA (Verion Serion) at OIE reference
Summary
41
Laboratory for brucellosis, Germany. Prevalence data was analyzed by chi square test
using SPSS version 20 Software (Apache License, USA) to find out correlation between risk
factors and brucellosis prevalence.
Risk factors such as consumption of raw milk, contact with animals, and symptoms
were significant. In our opinion, indirect modified ELISA is more sensitive than RBPT
(Pakistan) and RBPT (French). RBPT, (Pakistan) can be used for primary screening of
brucellosis cases because of cross reactivity present in RBPT antigen and confirmation must
be made with a more specific and sensitive serological test, such as B. abortus-specific
indirect modified ELISA. The results of present study showed that RBPT, Pakistan antigen
showed almost same sensitivity and specificity as that of RBPT (Pourquier, France) antigen.
Indirect modified ELISA is more specific as compared to RBPT (Pakistan) and RBPT
(French). It is highly suggestive to combine serodiagnostics test with molecular detection
including PCR and Real time PCR to increase the detection rate of brucellosis. Human
ELISA kit is extremely expensive that cannot be afforded in developing countries like
Pakistan to screen the human. PCR technique is highly reliable and less time consuming. It is
highly suggestive to conduct the study on human brucellosis on other districts of south
Punjab as it is believed that brucellosis is endemic due to lack of awareness and vaccination
in these areas. Availability: Items available for loan: UVAS Library [Call number: 2359-T] (1).
142.
Seroprevalence Of Camel Brucellosis In Three Selected Districts Of Punjab, Pakistan
by Sana Fatima (2007-VA-455) | Dr. Iahtasham Khan | Dr. Amar Nasir | Prof. Dr. Muhammad Younus.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: This is a representative study from Pakistan conducted in three districts of Punjab i.e.,
Jhang, Chiniot and Bhakkar which are rich in livestock population. There is a lot of research
work on livestock and dairy animals but camels are neglected and under-investigated animals.
Nomads mainly depend upon camels for milk, meat, milk byproducts and their earnings. Indeed,
it is a precious animal for them and therefore, to ensure the good health of their animals it is
essential that owners maintain healthy husbandry conditions. Brucellosis is one of the major and
unreported problems amongst the camels of our country. It results in losses to the economics of
the farmers/owners in terms of poor health, abortions, long calving interval, production of weak
offspring’s and poor quality of milk and meat. This disease is under-investigated and hence
people are ignorant of this insidious problem. Serological surveillance is a good and cheaper tool
to diagnose this problem. Determination of the seroprevalence is important to know the load of
disease and pockets of infections in the areas of central Punjab, Pakistan. There is also a need to
know which diagnostic antigen is more sensitive and specific from disease eradication and
control point of view.
A total of 200 camel serum samples were collected from three districts of the Punjab
province and tested by conventional screening test i.e., Rose Bengal Plate Agglutination Test
(RBPT) by using two antigens of different countries origin i.e. RBPT (IDEXX, Pourquier,
France) and RBPT (VRI, Pakistan) and then tested with confirmatory competitive Enzymelinked
Immunosorbent assay (cELISA). The data thus obtained regarding seroprevalence was
analyzed by using Chi-square and logistic regression IBM SPSS Statistics 20 (Apache software
license,USA).
Summary
44
Of the total 200 camels (50 male and 150 female), 5% (10 of 200), 4% (8 of 200) were
seropositive for anti-Brucella antibodies. Different risk factors were also included in study like
origin (nomadic and organized), area, age, gender, season, type of herd, abortion history and
orchitis in male. All of these risk factors were statistically analyzed to reveal the truth about
camel brucellosis. Of the various risk factors studied, the risk factors including camels (cows)
positive history of abortion (45.5%), orchitis (camel bulls) (33.3%), rearing with other ruminants
(9.4%), winter season (11.5%), nomadic production system (2.67-6.67%), and area Jhang (6-
12%) and Chiniot (2-8%) were statistically significant which could be potential source of threat
for humans and other animals. The testing was performed using conventional methods as well as
using cELISA. It is concluded that cELISA is more specific than conventional screening tests but
molecular diagnosis is highly suggestive for future studies. ELISA performed in Pakistan
(cELISA, Svanovir) and the ELISA (iELISA, ID VET Kit, France) performed in OIE reference
lab for brucellosis in Germany showed perfect agreement between them (both tested four camel
sera positive). The current study will help to minimize and eradicate the low prevalence of camel
brucellosis by creating awareness amongst the farmers and through vaccination and herd
immunization of all camel calves at age of 4-8 months. Adopting the policy of testing and culling
of positive reactors will be pivotal to achieve the objectives. Availability: Items available for loan: UVAS Library [Call number: 2361-T] (1).
143.
Epidemiology for Field Veterinarians : An Introduction
by Sergeant, Evan | Perkins, Nigel.
Edition: First ed.Material type: ; Format:
print
Publisher: UK: CABI, 2015Availability: Items available for loan: UVAS Library [Call number: 636.08944 Sergeant 30874 1st 2015 Epidemiology] (2). Checked out (1).
144.
Poultry Waste Management And Its Impact on Public Health In Lahore, Punjab, Pakistan
by Muhammad Nauman Akhtar (2006-VA-150) | Dr. Hassan Mushtaq | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Ijaz.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Theses submitted with blank cd. Availability: Items available for loan: UVAS Library [Call number: 2383-T] (1).
145.
Introduction to Epidemiology / 5th ed
by Ray M. Merrill.
Edition: 5th ed.Material type: ; Format:
electronic
Publisher: USA: Jones and Bartlett Publishers; 2010Availability: Items available for loan: UVAS Library [Call number: 614.4 Merrill 27823 5th 2010 Epidemiology] (1).
146.
Health Education for Adolescents / by W.H.O
by Omran, Abdul Rahim | Al-Hafez, Ghada.
Material type: ; Literary form:
not fiction
Publisher: Cairo : World Health Organization, Regional Office for the Eastern Mediterranean, 2006Availability: Items available for loan: UVAS Library [Call number: 610.71041 Omran 23035 1st 2006 Epidemiology] (1).
147.
Cross Sectional Study Of Newcastle Disease Virus In Wild Captive Peacocks (Pavo Cristatus) In Zoological Gardens Of District Lahore
by Faisal Sher (2007-VA-11) | Dr. Mamoona Chaudhry | Dr. Shakera Sadiq Gill | Dr. Asim Khalid Mehmood.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Newcastle disease virus (NDV) is RNA virus.It is the member of avian paramyxovirus type 1 (APMV-1).Its genus is Avulavirus genus. The incubation period ranges from 2-15 days. NDV strains are classified into velogenic, mesogenic and lentogenic categories. Newcastle disease is a virus disease of birds characterized by variable combinations of gastroenteritis respiratory distress and nervous signs.
A cross sectional study was conducted for the duration of 3 months in order to identify the prevalence of Newcastle disease in five zoological gardens of Lahore district. Peacocks were restrained by the trained persons and oropharyngealsamples were collected from apparently healthy Peacocks present in the zoological gardens in Lahore. Sampling of 200Peacocks was done by convenience sampling and stored in freezer at -80°C for further analysis.Virus isolation by egg inoculation was performed to isolate virus and confirmationof (NDV) Newcastle disease virus was done by conducting HI test with specific antisera.Samples were inoculated in 10 days embryonated hen’s eggsand allantoic fluid was collected and tested for haemagglutination (HA) activity. Positive samples were confirmed by haemagglutination inhibition (HI) test.
Frequency distribution through age, sex, breed, origin, date and site of collection were examined by standard statistical methods to determine the prevalence by virus isolation method in that specified population. The data was analyzed by using two way contingency tables with Chi-square test for association. Test was performed to check the association of NDV with age, sex, breeds, origin, and specimen type. The significance level was kept at p<0.05. 2 samples were found positive. Overall prevalence in wild captive peacocks was 1% (95 CI=.1-3.6). 200 samples were screened by spot HA test and 198 samples were found negative in four zoological gardens while 2 samples that were positive found in private zoo samples. Significant association was found between positive samples for NDV and zoological gardens.
Prevalence estimates of (NDV) Newcastle disease virus was generated for Peacock population. Associated factors were identified through this study. Results were shared with international community working for the control and eradication of Newcastle disease.
Availability: Items available for loan: UVAS Library [Call number: 2411-T] (1).
148.
Isolation And Molecular Detection Of Salmonella Species In Milk And Milk Products
by Muhammad Umar Ijaz (2007-VA-040) | Prof. Dr. Mansur-ud-Din-Ahmad | Dr. Muhammad Hassan Mushtaq | Dr. Ali Ahmad Sheikh.
Material type: ; Literary form:
not fiction
Publisher: 2015Dissertation note: Salmonellosis is one of the emerging zoonotic diseases. Human infections result from contaminated raw or undercooked food. Various sources of contamination in milk are dirty udder, unhygienic handling and utensils, dirty hands of milkmen and poor quality water supply at the farm. To ensure food safety there is a dire need for the availability of valid, rapid and accredited diagnostic system. Conventional culture methods for detecting Salmonella spp. in foods needs 4–5 days. The development in molecular techniques made it possible to cut short the procedure.
The present study was conducted with the aim to evaluate the burden of Salmonella spp. in milk and milk products. In total 150 samples were collected, out of which there were 75 milk samples. These samples were collected from farm dairy herds (pooled milk) located in Harbanspura Dairy colony, Lahore. Salmonella was detected in 8 samples (11%) by conventional method.
In addition to milk samples, 75 samples of milk products were also collected from retail shops. These include 50 samples of Yogurt and 25 samples of Yogurt milk. Milk products had 6 positive samples (8%). No sample of Yogurt was detected positive for Salmonella. The reason for this is that Yogurt had only Salmonella if it is present in starter culture. Furthermore yogurt is made after frequent heating. Salmonella is killed by such continuous and vigorous heating. Yogurt milk is prepared from Yogurt along with raw milk in a separate utensil. There are chances of contamination there so it had 6 positive samples. Total 14 (9%) samples were detected in 150 samples by conventional method. It was found that Salmonella was present in raw milk samples and milk products at places where either cleanliness was not proper, milk handling practices
Summary
53
were not up to the mark, udder was not washed before milking or overall management practices were poor.
Positive samples obtained by conventional method were further analyzed by PCR for Salmonella genus confirmation. Out of total 8 positive milk samples by conventional method, 5(62%) were confirmed as Salmonella genus. Similarly from 6 positive samples of milk products by conventional method, only 2(33%) were confirmed as of Salmonella genus. Further PCR was conducted for Salmonella typhimurium detection. Milk samples were containing 3(60%) positive samples while no positive sample was detected in milk products.
On the basis of the results of present study, it is recommended that milk should always be boiled before use. Further Hygienic measures should be adopted during milking. Proper handling of milk and milk products is also important to limit the cross contamination. It is also advised that standards such as pasteurization and HACCP should be introduced to facilitate production of good quality milk. Electronic and print media should also create awareness among people about food safety. Availability: Items available for loan: UVAS Library [Call number: 2408-T] (1).
149.
Essentials of Infectious Disease Epidemiology
by Magnus, Manya.
Material type: ; Literary form:
not fiction
Publisher: Sudbury, Mass. : Jones and Bartlett Pub, 2008Availability: Items available for loan: UVAS Library [Call number: 362.196 Manya 23655 1st 2005 Epidemiology] (1).
150.
Essentials of Biostatistics in Public Health / 2nd ed
by Sullivan, Lisa M | Sullivan, Lisa M.
Edition: 2nd ed.Material type: ; Literary form:
not fiction
Publisher: Sudbury, MA : Jones & Bartlett Learning, c2012Availability: Items available for loan: UVAS Library [Call number: 610.72 Sullivan 31109 2nd 2012 Epidemiology] (2). Checked out (1).
