Antimicrobial Resistance Patterns of Selected Enterobacteriaceae Isolated from Commercial Poultry Production Systems in Kiambu County, Kenya

Introduction: In the last two decades, the treatment of enteric infections has been complicated by the emergence of antimicrobial resistant strains. Occurrence of multidrug resistant Extended Spectrum Beta Lactamase (ESBL) producing Enterobactaeraceae poses the greatest risk to public health by raising morbidity and mortality by six folds in developing countries. The present study aims to determine the antibiotics resistance patterns of selected Enterobacteriaceae isolated from commercial poultry production systems in Kiambu County. Methods: A laboratory based cross-sectional study was conducted in six purposively selected Sub-Counties of Kiambu County from October 2020, to February 2021. A total of 437 fecal samples were collected from each household. The antibiotic susceptibility testing using disk diffusion method was used against E. coli; Salmonella spps.; Shigella spps.; and Klebsiella spps. which were isolated and identified through standard biochemical. Results: Out of 437 fecal and stool samples collected, 591 isolates were recovered with E. coli (48.9%) being the most frequently identified, followed by Shigella spps. (18.8%), Salmonella spps. (18.3%), and Klebsiella spps. (14.0%). The study shows there was high prevalence of multiple resistance among isolates especially to Sulfamethoxazole (79%), Trimethoprim (71%), and Tetracyclines (59%), correspondingly. Additionally, the isolates showed the highest rate of susceptibility against Cefuroxime (94%), Gentamicin (93%), Ceftriaxone (91%), How to cite this paper: Ndukui, J.G., Gikunju, J.K., Aboge, G.O., Mwaniki, J., Kariuki, S. and Mbaria, J.M. (2021) Antimicrobial Resistance Patterns of Selected Enterobacteriaceae Isolated from Commercial Poultry Production Systems in Kiambu County, Kenya. Pharmacology & Pharmacy, 12, 219-236. https://doi.org/10.4236/pp.2021.1210019 Received: August 12, 2021 Accepted: October 22, 2021 Published: October 25, 2021 Copyright © 2021 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access