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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Antimicrobial resistance of Escherichia coli isolated from chickens with colibacillosis in and around harare, Zimbabwe
Avian Diseases, Volume 57, No. 1, Year 2013
Notification
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Description
Colibacillosis, a disease caused by avian pathogenic Escherichia coli (APEC), can lead to great economic losses in the poultry industry. The aim of this study was to determine the prevalence of antibiotic resistance and antibiotic resistance patterns in APEC in Zimbabwe. From 503 chickens diagnosed with colibacillosis, 103 E. coli isolates were obtained. Isolation and identification of E. coli were carried out using microscopy and biochemical tests. The disc diffusion method was used to determine antibiotic susceptibility of the isolates to 8 commercial antibiotics. Many isolates exhibited resistance to more than one antibiotic. Antibiogram profiles indicated maximum resistance to tetracycline (100%), bacitracin (100%), and cloxacillin (100%) and a high prevalence of resistance to ampicillin (94.1%). However; there were high prevalences of sensitivity to ciprofloxacin (100%) and gentamycin (97.1%). The isolates showed moderate rates of sensitivity to chloramphenicol and neomycin. All isolates in this study showed multidrug resistance because they were all resistant to 3 or more antibiotics. Seven multidrug resistance patterns were observed. The most common pattern (resistance to ampicillin, bacitracin, cloxacillin, and tetracycline) was exhibited by 30 isolates. Our findings show that there is emerging drug resistance in APEC associated with colibacillosis in Zimbabwe. The observed high level of multidrug resistance could hamper the treatment of colibacillosis in Zimbabwe. © American Association of Avian Pathologists.
Authors & Co-Authors
Saidi, Bamusi
Zimbabwe, Harare
Diagnostic and Research Branch
Mafirakureva, Prettimore
Zimbabwe, Bulawayo
National University of Science and Technology Bulawayo
Mbanga, Joshua
Zimbabwe, Bulawayo
National University of Science and Technology Bulawayo
Statistics
Citations: 34
Authors: 3
Affiliations: 2
Identifiers
Doi:
10.1637/10325-081512-Case.1
ISSN:
00052086
Study Design
Cross Sectional Study
Study Locations
Zimbabwe