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Isolation And Antibiotic Resistance Profiling Of Enterococcus Faecium Recovered From Retail Fish In Lahore City

By: Maria Butt (2010-Va-281) | Dr. Ali Ahmad Sheikh.
Contributor(s): Prof. Dr. Aftab Ahmad Anjum | Dr. Wasim Shehzad.
Material type: materialTypeLabelBookPublisher: 2016Description: 70p.Subject(s): Department of MicrobiologyDDC classification: 2493-T Dissertation note: Enterococcus faecium is an enteric, gram positive and lactic acid bacteria which belongs to genus enterococcus and inhabit the intestinal tract of human, fish and other warm blooded animals. Due to irrational use of antibiotics in human and veterinary sector, antibiotic resistance has been developed in commensal bacteria including Enterococcal species. These resistant bacteria are released in environment through human and animal waste and transfer resistant genes to susceptible bacteria present in wetlands making them antibiotic resistant. E. faecium is considered to be involved in transmission of resistance genes, present on mobile genetic elements through conjugation to other bacteria. The resistant bacteria can be transferred to human through food chain. The present study was designed to evaluate the prevalence of E. faecium recovered from retail fish samples collected from various areas of Lahore city. Antibiotic resistance profiling of the isolates against commonly used antibiotics was also determined. In current study 65 fish samples (intestinal swabs) were processed for isolation of E. faecium through standard culturing and biochemical reactions. Out of 65 swab samples, 30 samples (47.69%) were found positive for Enterococcus faecium. Antibiotics resistance profiling showed that the isolates were resistant to antibiotics mentioned as below: Ampicillin (100%) > erythromycin (56.6%) > rifampicin (53.3%) > Chloramphenicol (30%), ciprofloxacin (30%) > tetracycline (20%), vancomycin (20%) > Teicoplanin (13.3%) > Doxycyclin (6.6%) > Fosfomycin (0%). E. faecium isolates showed resistant to at least 2 or 3 antibiotics of different group. In conclusion it is observed that retail fish is the carrier of antibiotic resistant Enterococcus faecium and Summary 51 could transfer resistant genes to wetlands and other aquaculture from where it could be transferred to human body. Efforts should be made to use antibiotics wisely and hygienic practices should be followed during slaughtering and processing of fish meat to avoid bacterial spread from animal source to human beings.
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Enterococcus faecium is an enteric, gram positive and lactic acid bacteria which belongs to genus enterococcus and inhabit the intestinal tract of human, fish and other warm blooded animals. Due to irrational use of antibiotics in human and veterinary sector, antibiotic resistance has been developed in commensal bacteria including Enterococcal species. These resistant bacteria are released in environment through human and animal waste and transfer resistant genes to susceptible bacteria present in wetlands making them antibiotic resistant. E. faecium is considered to be involved in transmission of resistance genes, present on mobile genetic elements through conjugation to other bacteria. The resistant bacteria can be transferred to human through food chain. The present study was designed to evaluate the prevalence of E. faecium recovered from retail fish samples collected from various areas of Lahore city. Antibiotic resistance profiling of the isolates against commonly used antibiotics was also determined.
In current study 65 fish samples (intestinal swabs) were processed for isolation of E. faecium through standard culturing and biochemical reactions. Out of 65 swab samples, 30 samples (47.69%) were found positive for Enterococcus faecium. Antibiotics resistance profiling showed that the isolates were resistant to antibiotics mentioned as below: Ampicillin (100%) > erythromycin (56.6%) > rifampicin (53.3%) > Chloramphenicol (30%), ciprofloxacin (30%) > tetracycline (20%), vancomycin (20%) > Teicoplanin (13.3%) > Doxycyclin (6.6%) > Fosfomycin (0%). E. faecium isolates showed resistant to at least 2 or 3 antibiotics of different group. In conclusion it is observed that retail fish is the carrier of antibiotic resistant Enterococcus faecium and
Summary
51
could transfer resistant genes to wetlands and other aquaculture from where it could be transferred to human body. Efforts should be made to use antibiotics wisely and hygienic practices should be followed during slaughtering and processing of fish meat to avoid bacterial spread from animal source to human beings.

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