Study on antimicrobial susceptibility of Escherichia coli isolated from dog feces at veterinary clinics in Ho Chi Minh City

Abstract

This study was conducted to determine the antimicrobial susceptibility of Escherichia coli (E. coli) isolated from the fecal samples of dogs at veterinary clinics in Ho Chi Minh City. The disk diffusion method was used to evaluate the susceptibility of 40 E. coli strains to 12 tested antibiotics according to CLSI guidelines (2021). The studied results showed that from the total of 47 stool samples, 40 E. coli strains were isolated and identified, accounting for 85.1%. E.coli isolates were most susceptible with imipenem, meropenem, and amikacin (>70%); with cefepime, gentamicin, and trimethoprim/sulfamethoxazole, the susceptibility was under 50%. The isolates were susceptible with tetracycline was low (5%), amoxicillin-clavulanate and doxycycline (2.5%) but was not susceptible with chloramphenicol. Most of the isolates were multi-resistant phenotypes (97.5%).