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The frequent administering of antibiotics in the treatment of poultry diseases may contribute to emergence of antimicrobial-resistant strains. The objective of this study was to detect the presence of extended-spectrum  β -lactamase- (ESBL-) producing  Escherichia coli  in poultry in Zambia. A total of 384 poultry samples were collected and analyzed for ESBL-producing  Escherichia coli . The cultured  E. coli  isolates were subjected to antimicrobial susceptibility tests and the polymerase chain reaction for detection of  bla   CTX-M ,  bla   SHV , and  bla   TEM  genes. Overall 20.1%, 77/384, (95% CI; 43.2–65.5%) of total samples analyzed contained ESBL-producing  Escherichia coli . The antimicrobial sensitivity test revealed that 85.7% (66/77; CI: 75.7–92) of ESBL-producing  E. coli  isolates conferred resistance to beta-lactam and other antimicrobial agents. These results indicate that poultry is a potential reservoir for ESBL-producing  Escherichia coli . The presence of ESBL-producing  Escherichia coli  in poultry destined for human consumption requires strengthening of the antibiotic administering policy. This is important as antibiotic administration in food animals is gaining momentum for improved animal productivity in developing countries such as Zambia.

Detection of Extended-Spectrum Beta-Lactamase-ProducingEscherichia coliin Market-Ready Chickens in Zambia