Effects of Antimicrobial Administration on the Prevalence of Antimicrobial-Resistant Escherichia coli in Broiler Flocks

• Published in: Japanese Journal of Infectious Diseases Vol. 72; no. 3; pp. 179 - 184
• Main Authors: Suzuki, Kasumi, Yossapol, Montira, Sugiyama, Michiyo, Asai, Tetsuo
• Format: Journal Article
• Language: English
• Published: Japan National Institute of Infectious Diseases, Japanese Journal of Infectious Diseases Editorial Committee 2019; Japan Science and Technology Agency
• Subjects: Amoxicillin; AMP; Ampicillin; Ampicillin - pharmacology; Animals; Anti-Bacterial Agents - pharmacology; Antibiotic Prophylaxis - veterinary; Antibiotics; Antiinfectives and antibacterials; antimicrobial administration; antimicrobial resistance; Bacteria; beta-Lactamases - genetics; Cephalexin; Cephalexin - pharmacology; chickens; Chickens - microbiology; co-trimoxazole; Cotrimoxazole; Drug Resistance, Multiple, Bacterial; E coli; Enterobacter - drug effects; Escherichia coli - drug effects; Escherichia coli - isolation & purification; Escherichia coli Infections - drug therapy; Escherichia coli Infections - epidemiology; Escherichia coli Infections - microbiology; Escherichia coli Infections - veterinary; Feces; Feces - microbiology; Japan - epidemiology; Klebsiella pneumoniae - drug effects; penicillin; Poultry Diseases - drug therapy; Poultry Diseases - epidemiology; Poultry Diseases - microbiology; Prevalence; Public health; Sulfamethoxazole; Trimethoprim; Japan; chickens; penicillin; antimicrobial administration; co-trimoxazole; antimicrobial resistance

The increase in antimicrobial-resistant (AMR) bacteria caused by antimicrobial usage is a public health problem. We investigated the proportion of cephalexin (LEX)-resistant bacteria in fresh feces obtained from antimicrobial-free broilers in three flocks at ＜15, 15–40, and＞ 40 days old. DHL agar pl...