1.
Epidemiological Trends, Clinical Profile And Risk Factors Associated With Crimean Congo Hemorrhagic Fever In Quetta, Balochistan
by Khushal Khan Kasi | Prof. Dr. Muhammad Athar Khan | Prof. Dr. Mansur-ud-Din Ahmad.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2012Dissertation note: Crimean congo hemorrhagic fever (CCHF) is an important disease in suburbs of Quetta in
particular, and other cities of Balochistan in general. The cases of this disease are brought to the
public hospital for treatment purposes. The study was carried out to understand the descriptive
nature of the disease with respect to geographic, temporal and personal distribution. The second
part of study comprised of cross sectional as well as case-control study for the identification of
different risk factors in patients as compared to their control admitted in the same hospitals. The
highest numbers of CCHF cases were from Quetta i.e. 35, 82 cases were male and 19 cases of
female, small scale sheep and goat farmer has highest number of cases i.e, 59. Mean age for male
patients was 30.82±15.47 years, while for female patients mean age was 29.17±16.40 years with
a p-value= 0.685. Mean platelet count for male and female patients was 450n.29±35934.14 and
35388.89±18081.96 respectively with a p-value= 0.270. Mean Hemogobin level for male and
female patients was 11.52±2.78 and 9.80±3.23 respectively, and with a p-value=O.023. Among
the patients, 5 patients were positive for IgG and IgM antibodies, 9 patients were having A+
blood group, 44 with B+, 16 with 0+, 1 with AB+ and 29 was not reported, 21 patients died and
the remaining patients discharged, and the highest number of cases were between April and
September. A significant association exist between platelet count with respect to cases who
suffered from CCHF (p-value= 0.000), male were 1.157 times more prone to CCHF as compared
to female (OR=1.157), (p-value=0.629) and (CI=0.641-2.089), and animals at home have has
more susceptibility to CCHF cases (OR=3.538), (p-value=O.OOO) and (CI=2.219-5.642).
Availability: Items available for loan: UVAS Library [Call number: 1377,T] (1).
2.
Epidemiology Of Major Transbuondary Diseases Of Livestock In Nomads Herds Of District Buner
by Farman Ali | Prof. Dr. Muhammad Athar Khan | Prof. Dr. Mansur-ud-Din Ahmad.
Material type: ; Format:
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; Nature of contents: ; Literary form: Publisher: 2011Dissertation note: The research project was carried out in the livestock of nomads in District Bunere to study the epidemiology of major trans-boundary livestock diseases including foot and mouth diseases 9FMD) in buffaloes and cattle and Peste des Petite Ruminants (PPR) and Contagious Caprine Pleuropneumonia (CCPP) in sheep and goats. A questionnaire was designed for collecting data regarding morbidity, mortality & case fatality rate in different seasons in the animals of nomads migrate from Afghanistan to Pakistan. Serosurveillance was also conducted by collecting 600 blood samples from the apparently healthy sheep and goats, cattle and buffaloes in the summer season. A total number of 100 nomads were interviewed by systematic random sampling method and sera were collected to test the antibodies against FMDV and PPRV. The serum samples in labeled eppendorph tubes were stored in deep freezer till the sent to lab in ice container. These samples were transported to National Veterinary Laboratory Islamabad, where cattle and buffalo's sera were examined by using 3ABC-ELISA & sheep and goat's sera were analyzed by C-ELISA to detect antibody ofPPRV, respectively. Similarly 60 nasal swabs of sheep and goats collected and examined in Veterinary Research Institute Lahore, by culturing method. The data were collected and analyzed statistically by using SPSS (16.00). Means, Chi square values, P-Vlues and percentages were calculated. The overall prevalence of CCPP was 18.3% while individually 3.3% in sheep and 15 % in goats. The prevalence in goat (15%) was higher than that
of sheep (3.3%) with insignificant difference and no significant association between CCPP
disease and species of sheep/goat of nomads. Similarly age wise prevalence of CCPP in young (sheep and goats) was 10% which was higher than that of adult (8.3%) with significant association between CCPP disease and age of sheep and goat. Similarly gender wise prevalence was 6.66% in male and 11.6% in female (sheep and goats) with no significant association between CCPP disease results and gender of sheep and goats. The peculiar signs of CCPP were recorded retrospectively, including pneumonic coughing, mucopurulent nasal discharges, fever and abortion in sheep and goats in autumn season in Pakistan and in winter season in Afghanistan respectively. The 10.5% mortality rate, 82% morbidity rate and 12.8% case fatality rate of CCPP in autumn season were recorded in sheep respectively. While 92% morbidity, 12.5% mortality and 13.5% case fatality rate were recorded in goats in autumn, respectively. The mortality, morbidity and case fatality rate were 6.5%, 66%, and 9.8% in sheep in winter season. Similarly mortality, morbidity and case fatality rate in goats due to CCPP in winter season were8%, 89.5% and 8.97%, respectively. The prevalence in both the species were higher in autumn season than that of winter season and zero prevalence were recorded in rest of the seasonsretrospectively. The night stay with crowding of livestock near streams and springs,
night fog, morning dew, cold seasons and common travelling and grazing premises were recorded as risk factors for CCPP.
The serosurveillance for FMD was conducted and overall seroprevalence of FMD was 32% and individually 12% in buffaloes and 20% in cattle respectively with no significant association and both the species were equally susceptible to FMDV. Gender wise seroprevalence in male and female cattle and buffaloes were 12% and 34 % respectively with no significant association between FMDV antibodies and gender of the animals. Age wise seroprevalence of FMD in adult cattle and buffaloes was higher (24%) than that of young (8%) cattle and buffaloes with a significant association between the age of cattle, and buffaloes and FMDV antibodies. The survey results indicated that all the cattle and buffaloes were in mixed herds and the peculiar signs including stomatitis, lameness, abortion, fever and dysphonia were recorded retrospectively. The mortality rate was 0% in cattle herds of all ages and in both the genders while the morbidity rate was 52.5%. The death rate of l.1%, 75.5% attack rate and 1.41% case fatality rate in buffaloes were recorded retrospectively in the humid rainy season of late summer in Shangla, Besham & Chitral districts.
The serosurveillance for PPR in sheep and goats was conducted by using competitive ELISA, dand 42% overall seroprevalence while individually 27% in goats and 14.8% in sheep were recorded with a significant association. Gender wise seroprevalence of 38.8% in females and .3.2% in males of sheep and goats with significant difference and with a significant association to PPRVantibodies were recorded. The age wise seroprevalence of37.8% and 4.2% in adult and in young of both the species with a significant association to PPRV antibodies were recorded. No clinieal signs of PPR were observed by nomads because the infection was subclinical and survived previously because they had not practiced vaccines for last many years. Zero % morbidity and mortality rates were therefore recorded retrospectively in sheep and goat flocks. The four routes at the border areas of Khyber Pakhton Khwa were recorded for the seasonal and cyclieal entrance of livestock of nomads, which act as abridge for diseases transmission between Afghanistan & Pakistan. The outbreaks of CCPP occurred in winter season in Afghanistan and in autumn season in Pakistan (Gilgith, Chitral, Kohistan, Besham, Shanglapar and Buner). Also the FMD
outbreaks occurred in Buner and Shangla in late summer while the PPR was subclinical and animals survived. Cross borders as well as district wise trade and movement restrictions are of utmost importance for control the diseases. Similarly serosurveillance of the disease in
the local and as well as in nomad's livestock's population necessean appropriate scheduled vaccination.
Availability: Items available for loan: UVAS Library [Call number: 1408,T] (1).
3.
Assessment Of Knowledge And Practice Of Food Handlers About Food Safety In University Hostel Kitchen Employees
by Qurra-Tul- Ain | Prof. Dr. Mansur-ud-Din Ahmad | Prof. Dr. Muhammad Athar Khan.
Material type: ; Format:
print
Publisher: 2011Dissertation note: Cigarette butts are found at crime scenes as potential evidence. Saliva is present on the cigarette butts that can be detected and DNA can be isolated from nucleated cells present in saliva for quantification and typing. In past, research has declared that cigarette butts are useful source for saliva detection, DNA extraction and profile generation. Difference of saliva accumulation on cigarette butt paper and filter was compared in the present study. On smoked cigarette butts, gender based comparison of saliva detection and DNA quantification was performed.
Agarose gel assay was used for amylase enzyme detection. All samples showed positive results for saliva detection. Cigarette butt filter and filter paper were processed separately and analyzed. Results showed more saliva detected at cigarette butt paper. Then gender based comparison on cigarette butt samples smoked by males and females was done for salivary amylase. By using student t-test, no significant difference was found on basis of gender. For extraction of DNA, phenol chloroform extraction method was used. Quantifiler® Human DNA Quantification kit was used through RT-PCR for quantification of DNA isolated from cigarette butt papers. SDS software analyzed the data and gave results of quantified DNA in ng/µL. Gender based comparison in DNA quantity was done by using statistical method. SPSS software was used for statistical analysis. Pearson correlation value was calculated between detected saliva and quantified DNA of samples. Weak positive results of correlation were obtained between saliva and DNA.
Availability: Items available for loan: UVAS Library [Call number: 1424,T] (1).
4.
Clinico-Epidemiological Study Of Toxocariasis In Pet Cats In Lahore
by Shakera Sadiq Gill | Prof. Dr. Mansur-ud-Din Ahmad | Prof. Dr. Muhammad Athar Khan.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2012Dissertation note: The study was conducted at the pet clinic UVAS to check the prevalence of Toxocara Cati in pet cats and awareness of the pet owners about the zoonosis. Prevalence of Toxocara was checked by conventional laboratory techniques. A survey was conducted to check the awareness of zoonotic diseases among the pet owners using a questionnaire. A total of 40% were found to be infected with Toxocara cati.
Overall high prevalence was recorded in cats less than one year of age which was significant. There was also significant difference of prevalence among cats in which deworming was not done as compared to the dewormed cats. Prevalence was also high in cats in which the fecal consistency was not normal. There was no significant difference in prevalence of Toxocara between male and female cats. There was also no significant difference of prevalence among the different breeds of cats.
The results of the survey revealed that out of the total of 100 pet owners only 39% had idea of pet zoonosis, while the majority of the owners had awareness about rabies. Only 18 % of the owners were informed by the veterinarians. The total of 98% suggested that the vet should inform the owners about pet zoonosis. Among the total 56% replied that they will leave their pet if a zoonotic problem was diagnosed the remaining were not willing to leave their pets even if a zoonotic problem diagnosed.
Most cases of human toxocariasis and zoonotic hookworm infections are preventable by simple measure such as careful personal hygiene, eliminating intestinal parasites from pets through regular deworming and not allowing the children to play in potentially contaminated environments. Despite the fact that some of the pet owners dispose of their pet feaces however,, owners should be educated on proper disposal methods of pet feaces. Disposal methods like using pet feaces as garden manure, can predispose children playing in the lawn to infective eggs and larvae.
Availability: Items available for loan: UVAS Library [Call number: 1428,T] (1).
5.
Geographical Distribution Of Dengue Fever Infected Patients And Its Related Risk Factors In And Aroun Lahore.
by Muhammad Usman Zaheer | Dr. Muhammad Hassan Mushtaq | Prof. Dr. Mansur-ud-Din Ahmad.
Material type: ; Format:
print
Publisher: 2012Dissertation note: Dengue fever is the most common mosquito-borne viral infection of humans worldwide and is a major public health concern, especially in tropical and subtropical regions (Mackenzie et al., 2004). This life threatening disease is caused by a specific virus (ARBO-Flavivirus) transmitted by the bite of a female mosquito (Aedes aegyptii and Aedes albopictus) which is identified by the white bands and scale patterns on its legs and thorax. Trans-ovarial transmission of dengue virus has also been reported in different studies. The mosquito may bite at any time but the probability of bites increase at dusk and dawn (WHO 2009).
Dengue fever has emerged as a significant public health problem in Pakistan. In Pakistan, the first epidemic of dengue fever was reported in 1994 in Karachi (Anaari et al., 2001). Several years later, in 2006 another epidemic was reported in the southern part of Pakistan, predominantly caused by DENV-2 that led to 58 deaths (khan et al., 2008). In 2007, 22 people died of disease and in 2008 only five people were reported to die from it. Between October 2006 and January 2008, there were 3,242 laboratory confirmed cases of dengue fever in Pakistan. Since January 2009, 224 suspected cases were reported in Sindh province, of which 135 were the confirmed cases. During the epidemic of dengue fever in 2010 more than seven thousand cases were reported in Pakistan, of which 5 thousand cases were from Punjab and resulted in 63 deaths.
The mosquito-borne viral hemorrhagic diseases are prevalent throughout the world. Dengue hemorrhagic fever (DHF) is one of the most important diseases widely distributed in the tropics of South East Asia. It is an infectious malady of human beings characterized by fever and non-specific constitutional symptoms. The virus is transmissible to human beings by the bite of female Aedes aegypti and Aedes albopictus. The disease is spreading like a geometric rise of cases in a wide range of geographical regions.
The geographical factors and locality of patients may be a contributing factor to the outbreak of Dengue Fever. Climate change is likely to increase the area of land with a climate suitable for dengue fever transmission, and that if no other contributing factors were to change, a large proportion of the human population would then be put at risk.
The data on address of patients were collected from all the patients admitted in tertiary care hospital from August 01, 2011 to November 30, 2011. The geographical risk factors studied in this project were presence or absence of parks, trees, ponds, swimming pool, service station, tyre shop, source of stagnant water, pond and municipality garbage tank in vicinity of house of the cases and controls. For the study of risk factors we made 2 groups i.e. cases and controls; each comprising of 300 subjects and then data on presence or absence of various hypothesized risk factors in the vicinity of house (400 meters) and area (800 meters) were collected through a well structured and pre-tested questionnaire (Harrington et al., 2005; Honório et al., 2003; Schatzmayr 2000; Muir and Kay 1998; Reiter et al., 1995; McDonald 1977; Hausemann 1971 and Bond et al., 1970).
The statistical analysis of data was done by using SPSS 16.0. Qualitative data were presented in form of tables, bar charts, column and pie- charts. Chi-square test was applied to see the association between dengue fever and various hypothesized risk factors. P-value<0.05 was considered as significant. Odds ratio was calculated at 95% level of confidence (CI) for various hypothesized risk factors of dengue fever.
The results of present study revealed that the season of dengue fever in Pakistan is from August to November and the period prevalence of dengue fever to be 0.11%. Males (59%) were mainly the victim of dengue fever. The main affected age groups were 16-30 year (37.33%) and 31-45 years (29.67%). As far as the geographical distribution of dengue fever infected patients is concerned, it was concluded that dengue fever cases were reported from all the ten towns of Lahore metropolitan, however, most of the cases were reported from Ravi town followed by Data Ganj Baksh town and Cantt.
The results regarding various hypothesized risk factors are as follows: parks/trees/plants in vicinity of house OR=8.81, p-value <0.05; swimming pool in vicinity of house OR=5.O3, p-value <0.05; source of stagnant water in vicinity of house OR=8.25, p-value <0.05; fogging in your area OR=0.50, p-value <0.05; service station in the area OR=5.98, p-value <0.05; tyre shop in the area OR=6.11, p-value <0.05; municipality garbage tank in the area OR=5.88, p-value <0.05; any pond in the area OR=5.69, p-value <0.05.
From the results of this project we concluded that dengue fever is most prevalent from August to November and it is a disease of mainly male gender and mostly affects people of age group 16-45 years. Besides this, dengue fever is almost equally distributed in all the towns of Lahore metropolitan. Also we concluded that presence or absence of parks, trees, plants, swimming pool, stagnant water, pond, service station, tyre shop and municipality garbage tanks in vicinity of house are the risk factors of dengue fever. Fogging proved to be a deterrent to dengue fever.
On the basis of results of this project there is need to implement a control program in which vector control and minimizing the exposure of people to risk factors should be the key points that need to be addressed.
Availability: Items available for loan: UVAS Library [Call number: 1444,T] (1).
6.
Prevalence Of Antibiotic Resistant Staphylococcus Aureus In Milk, Milk By- Products And Food Handler At Retail
by Kanwal Hafeez | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2012Dissertation note: The present study was conducted to check the prevalence of antibiotic resistant Staphylococcus aureus in milk, milk products and food handlers at various dairy retail shops in Lahore. A total of 100 samples, 30 samples of raw milk, 30 samples of pasteurized milk, 20 samples of yogurt, 10 samples of butter and 10 hand swabs samples of dairy handlers were analyzed. Staphylococcus aureus was detected in 54% (54 out of 100) samples.
Overall high prevalence was recorded in raw milk, followed by hand swabbing samples of dairy handler, butter, pasteurized milk and yogurt. The results indicated unhygienic practices during milking and handling of milk at different critical control points such as transportation, storage, and post-pasteurization contamination. Overall high prevalence of ampicillin and amoxicillin resistant Staphylococcus aureus were recorded in all the samples of milk and milk products and the hand swabbing of dairy handlers, followed by resistant against chloramphenicol, trimethoprim, streptomycin and vancomycin respectively. All the isolates were resistant to ampicillin followed by resistance against amoxicillin, chloramphenicol, trimethoprim, streptomycin and vancomycin which were 92.6%, 37%, 33.3%, 24.1% and 22.2% respectively.
The antibiotic resistant Staphylococcus aureus in milk and milk products indicated the widespread use of these antibiotics in treating different types of infections associated in either livestock or humans which results in selection pressure of these antimicrobials and results in the emergence of these antibiotic resistant bacteria in different environmental conditions. The risk associated with human health as a result of ingestion of these antibiotic resistant bacteria can be prevented by adopting hygienic measures during milking, transport, storage and hygienic handling by the handlers so the human health can be assured.
Availability: Items available for loan: UVAS Library [Call number: 1520,T] (1).
7.
Sero And Viro Surveillance Of Influenza Virus Sero Types Circulating In Equine Species
by Muhammad Sajid | Prof. Dr. Mansur-ud-Din Ahmad | Prof. Dr. Muhammad Athar Khan.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2011Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1526,T] (1).
8.
Detection Of Carrier And Subclinical Infection Of Babesia Ovis Trough Pcr At Government Farms Of Punjab
by Haider Noor | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2012Dissertation note: Haemoprotozoan infections in ruminants are of significant importance in tropical and subtropical regions of the world. Diseases are transmitted through ticks thus a number of epidemiological factors/risk factors are involved. Ovine Babesiosis is one such disease posing problems in Pakistan which is an agricultural country and livestock plays an important source of income for farmers. The economic losses in small ruminant production are significant in the tropical and subtropical regions of the world. Carrier sheep infected with Babesiosis are challenge to current diagnostic methods and are difficult to detect because of the low number of parasites in circulation. However diagnosis of carrier animals in herd is important for preventing outbreaks by transmission through vector ticks to healthy animals and for obtaining epidemiological data of disease. The work done on Babesia ovis is negligible. For this purpose a study was conducted at two farms to measure the prevalence and optimization of PCR for Babesia ovis. Blood was collected into an anticoagulant containing vacutainer. First thin smears were formed and stained with Giemsa stain for microscopic examination of Babesia ovis. For DNA extraction Puregene DNA purification system, Gentra, was used. Extracted DNA was amplified in a thermolyser using B. ovis primers and then analyzed using electrophoresis on 1% agarose gel. Microscopic examination demonstrated a prevalence of 16 % while PCR results revealed prevalence of 29% for B. ovis. Results displayed that the efficacy of PCR is more sensitive than Light Microscopy. Data on infection rate between male and female and between different age groups was statistically non-significant. Herd wise prevalence was 36% and 22% in Livestock Production Research Institute, Bahadarnagar, Okara and Small Ruminant Training and Research Center,Ravi Campus, Pattoki respectively. Common sites of attachment for the ticks were under the tail, perineal region and underneath ears.The data was analyzed by using SPSS (Statistical Package for Social Sciences).
Availability: Items available for loan: UVAS Library [Call number: 1534,T] (1).
9.
Epidemiology Of Brucelosis In Sheep And Goat In District Quetta, Balochistan
by Abdul Wahab Khan | Prof. Dr. Mansur-ud-Din Ahmad | Prf. Dr. Muhammad Athar Khan.
Material type: ; Format:
print
Publisher: 2012Dissertation note: Brucellosis is one of the chronic infectious bacterial diseases of farm animals and man caused by Brucella specie and has a wide host range including bovine, ovine, caprine, canine, equine and man. It causes heavy economical losses in livestock holdings by resulting abortion and infertility while from public health point it is a bacterial zoonotic diseases causing undulant fever in man. In the modern world it is still a challenging health ailment to livestock and public health. In Pakistan it is prevalent in livestock holdings and human population. Keeping in view the importance of Brucellosis the present study was designed to investigate its status in District Quetta of Balochistan province.
In this study sheep, goat and their concerned (farmers, veterinary assistant, veterinarian, butchers) were included. Govt. farms, private farms and slaughter houses were used as a source of samples. Information about risk factors in man and animals were gathered by separate structured questionnaires. To investigate Brucellosis, blood and milk samples were collected and serum from blood samples was isolated. Serum and milk samples were screened with Rose Bengal Plate test and Milk Ring Test respectively, and positive cases from RBPT were further tested on Polymerase chain reaction for confirmation.
The overall seroprevalence of Brucellosis in animals was 2.40 %, 3.80 %, and 2.22 % in sheep, goat and livestock owners respectively by RBPT and this result was confirmed by PCR, while prevalence of brucellosis was 1.6% by MRT achieved. The seroprevalence of brucellosis from Lahore was 3.91% by Rose Bengal Plate test and confirmed through PCR. Among the risk factors in human significant association was found between the occupations of the person. And brucellosis is a serious threat to man. Therefore, routine surveillance of farm flocks is essential, to know about the brucellosis and local infected areas, before implementing a wide scale national programme of brucella control and eradication. There is an increasing need of educating farmers and farm managers about brucellosis and its public health significance.
Availability: Items available for loan: UVAS Library [Call number: 1535,T] (1).
10.
Seroprevalence Of Toxoplasmosis In Goats And Their Attendants In Dort Minro (D.G.Khan), Punjab (Pakistan)
by Shams-ur-Rehman | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
print
; Literary form:
drama
Publisher: 2013Dissertation note: Toxoplasmosis is a protozoan disease of cats, however all warm blooded animals comprising mammals, birds and human beings can be infected with it. The disease is manifested by abortion, resorption, neonatal loses, birth of weak kids, birth defects and mummification of fetuses in pregnant animals. Global seroprevalence of Toxoplasmosis is continuously evolving in animals and human beings. Keeping in view the zoonotic importance of Toxoplasmosis, the present study was conducted, in Fort Minro, to determine the seroprevalence and potential risk factors of Toxoplasmosis in goats and their attendants.
A total of 52 pastoral goat herds with herd size of "?20 - ?40" animals per herd were selected by convenient sampling technique. Out of these 52 pastoral herds, 237 goats were selected by systematic sampling method i.e each 5th unit was selected for sampling. The goats were sampled if the age of goats was ?6 months. Most common breeds of these herds were, Pahari and Hairy goat breed. A total of 92 herd attendants were also selected to determine the zoonotic potential of Toxoplasmosis in Farm workers / attendants.
All serum samples were screened by LAT. For this purpose, the commercial Latex agglutination kit (Wiener Laboratorios S.A.I.C. Riobamba 2944, 2000 Rosario Argentina) was used for detection of specific antibodies of T.gondii in serum of goats and their attendants. A herd was considered as a positive, if at least one goat was found to be positive in that specific herd. Out of total 52 goat herds, 36 herds presented at least one or more than one seropositive animal. The number of positive animals in each herd, ranged from 1-10 animals. Out of 237 goats, 64 goats were positive for Toxoplasma gondii antibodies. Thus overall seroprevalence of Toxoplasmosis in goats was 27%. The seroprevalence was significantly high in female goats (21.5%) as compared to males (5.5%). Kajli/Pahari goat breed was more positive (14.8%) as compared to Hairy goats (12.2%). An increase trend of seropositivity was observed in goats with increase in age. Age group of "?3 years" of goats had highest share of percentage prevalence to overall prevalence of Toxoplasmosis, followed by age group "?1-<3 years", while age group "?6 m-<1Year" had lowest share of percentage prevalence to overall prevalence. Prevalence in males had 5.5% share in overall prevalence (27%) while prevalence in females had 21.5% share in overall prevalence. Data analysis of various risk factors determined that natural reservoirs of water, pastoral grazing and presence of cats and dogs were major risk factor of Toxoplasmosis in goat herds. Access of cats to drinking water and food resources and eating medium cooked meat were major risk factors for goat attendants.
High prevalence of Toxoplasmosis in goats and Farm workers, suggests that Toxoplasmosis is endemic in the study area and further epidemiological studies should be focused on goat meat, milk and milk products. It is concluded that Toxoplasmosis can be reduce in human beings and animals by reducing risk factors and maintaining proper hygienic measures.
Availability: Items available for loan: UVAS Library [Call number: 1710,T] (1).
11.
Studies On Risk Factors Associated With Transmission Of Escherichia Coli O157: H7 In Abattoir Environment
by Samiullah Khan | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
print
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1711,T] (1).
12.
Association Of Antimicrobial Resistant Campylobacter With Poultry Meat At Retailer Shops In Lahore Through Cross-Sectional Study
by Abdul Moeed | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
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; Literary form:
not fiction
Publisher: 2013Dissertation note: 6.1 Background
Antimicrobial resistance is an under-appreciated threat to public health in nations around the globe. With globalization booming, it is important to understand international patterns of resistance. Thermotolerant Campylobacter spp. are considered to be the most frequent cause of human acute bacterial enteritis worldwide, furthermore, numerous transmission vehicles are known, but raw milk, untreated surface water and especially poultry meat are major sources of human infections. In Pakistan studies reveal that among meat samples, the highest prevalence (48%) of Campylobacter was recorded in raw chicken. Therefore, the increasing level of resistance to the antibiotics among Campylobacter spp. is recognized as emerging public health problem.
6.2 Hypothesis
" Campylobacter spp. was present in the poultry meat at retailer shops.
" Unhygienic measures concerning to meat handling had a considerable effect on the prevalence of antimicrobial resistant Campylobacter.
6.3 Methodology
A cross sectional study of 3 months duration was carried out in the Lahore city of Punjab, Pakistan. Using the standard microbiological techniques and statistical analysis, the prevalence of Campylobacter and its pattern of antibiotic resistance were evaluated. Furthermore, through premeditated questionnaires, public awareness regarding meat-borne diseases, food safety and inappropriate usage of antibiotics were assessed as well.
6.4 Statistical design
Data will be analyzed by using SPSS version 20.0. Quantitative variable were presented by using mean ± S.D. Qualitative variable were presented with help of frequency tables, pie charts and bar charts. Chi-square test was applied to see the association among different variables. P value <0.05 was be taken as significant.
6.5 Outcome
Through this cross-sectional study, the prevalence and pattern of the antibiotic resistant campylobacter was assessed; moreover public awareness with special reference to food safety, knowledge of meat borne diseases and usage of antibiotics wereevaluated. Furthermore, one could play an influential role in public health by dissemination of awareness among the masses about the proper usage of antibiotics and food safety measures.
Availability: Items available for loan: UVAS Library [Call number: 1728,T] (1).
13.
Nosocomial Infections At Intensive Care Unit In A Tertiary Care Hospital In Lahore City
by Ajmal Iqbal | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Muhammad Hassan Mushtaq.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1729,T] (1).
14.
Risk Factors Associatede With Calf Mortality In Smallholder Dairy Farms In Per-Urban Area Of Lahore
by Muhammad Sohail | Prof. Dr. Mansur-ud-Din Ahmad | Dr. Mamoona Chaudhary | Prof. Dr.
Material type: ; Format:
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; Literary form:
drama
Publisher: 2013Dissertation note: A case control study was conducted to confirm association of hypothesized risk factors like age, sex, breed, colostrums ingestion time, feeding practices, season, housing, hygiene status of the farms and tick infestation. This study was conducted in Rakh Chandra dairy colony the biggest dairy colony situated in periphery of Lahore, rich with dairy animal. 10% sample size was taken of the total population consisting of young calves' cattle and buffaloes of 90 days age.
The overall mortality rate was (31.88%) while the crude mortality rate was found to be higher in the cattle calves that was of (35.76%) than in the buffalo calves (28%). Amongst all risk factors in the form of diseases and other health related conditions point of view calf diarrhea (54.7%; p=0.000) significantly associated with calf mortality and was found to be the leading cause of death followed by the respiratory diseases (28.5%) and other several risk factors were also seen to be associated with calf mortality. Ticks infestation was found to be (p=0.000: OR=13.618) strongly associated with calf mortality rate. While season was found to be associated (p=0.04: OR=1.21) with calf mortality rate in dairy farms.
The major cause of death recorded was diarrhea accounted 54.7% of total deaths. The higher mortality rate was recorded in the first month of age mostly in the 3rd week of life. Therefore it was concluded that age, sex, breed, tick infestation and colostrums were all associated with calf mortality. Further research work is needed to identify the individual magnitude of each risk factor associated with mortality in calves.
Availability: Items available for loan: UVAS Library [Call number: 1838,T] (1).
15.
Prevalence Of Salmonelia Ennteritidis In Hatcheries And Broiler Retail Outlets In Rawalpindi Punjab
by Abdul saeed | Dr. Muhammad Hassan mushtaq | Prof Dr. Mansur-ud-din ahmad.
Material type: ; Format:
print
Publisher: 2013Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1868,T] (1).
16.
Seroprevalence Of Brucella Canis In Dogs In Disteict Lahore0
by Muhammad Adnan aslam | Prof. Dr. Mansur ud din ahmad | Prof. Dr. Muhammad Athar khan.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2014Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1994,T] (1).
17.
Case Control Study For The Quantification Of Risk Factors Associated With Infected Catheter Patients
by Kinza Shabbir | Prof. Dr. Mansur ud din ahmad | Dr. Muhammad | Muhammad hassan mushtaq.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2014Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 1997,T] (1).
18.
A Cohort Study On Surgical Site Infectuins (Asnosocomial Infections) In Animal And Human Side
by Atia noreen | Dr. Mamoona chaudhry | Prof. Dr. Mansur ud din ahmad.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2014Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 2021,T] (1).
19.
Clinico-Epidemiology Of Giardiasis In Children And Their Association With [Et Dogs
by Noor-ul-Ain | Dr. Shakera Sadiq Gill | Prof Dr. Mansur-ud-Din Ahmad.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2014Dissertation note: Abstract Availability: Items available for loan: UVAS Library [Call number: 2118,T] (1).
20.
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).
21.
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).
22.
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).
23.
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).
24.
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).
25.
Epidemiological Investigation of rRisk Factors of Mastitis in Dairy Buffalo and Antibiotic Resistance of Staphylococcus Aureus
by Abid hussain2010-va-261 | Prof. Dr. Mansur ud din ahmad.
Material type: Publisher: 2015Dissertation note: Phd. Availability: No items available
