Prevalence and risk factors for carriage of antimicrobial-resistant Escherichia coli on household and small-scale chicken farms in the Mekong Delta of Vietnam

The Journal of Antimicrobial Chemotherapy
Vinh Trung NguyenConstance Schultsz

Abstract

To describe the prevalence of antimicrobial resistance among commensal Escherichia coli isolates on household and small-scale chicken farms, common in southern Vietnam, and to investigate the association of antimicrobial resistance with farming practices and antimicrobial usage. We collected data on farming and antimicrobial usage from 208 chicken farms. E. coli was isolated from boot swab samples using MacConkey agar (MA) and MA with ceftazidime, nalidixic acid or gentamicin. Isolates were tested for their susceptibility to 11 antimicrobials and for ESBL production. Risk factor analyses were carried out, using logistic regression, at both the bacterial population and farm levels. E. coli resistant to gentamicin, ciprofloxacin and third-generation cephalosporins was detected on 201 (96.6%), 191 (91.8%) and 77 (37.0%) of the farms, respectively. Of the 895 E. coli isolates, resistance to gentamicin, ciprofloxacin and third-generation cephalosporins was detected in 178 (19.9%), 291 (32.5%) and 29 (3.2%) of the isolates, respectively. Ciprofloxacin resistance was significantly associated with quinolone usage (OR = 2.26) and tetracycline usage (OR = 1.70). ESBL-producing E. coli were associated with farms containing fish ponds (OR ...Continue Reading

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Sep 24, 2016·The Journal of Antimicrobial Chemotherapy·Stefan SchwarzEngeline van Duijkeren
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Jun 22, 2019·BMC Veterinary Research·Marc ChoisyJuan Carrique-Mas
Feb 16, 2021·Frontiers in Veterinary Science·Doan Hoang PhuJuan Carrique-Mas
Mar 25, 2021·Antimicrobial Resistance and Infection Control·Mabel Kamweli AworhSiddhartha Thakur
Jun 6, 2021·Tropical Animal Health and Production·Khanh Nguyen DiThanh Cong Nguyen
Dec 24, 2020·Applied and Environmental Microbiology·Nhung Thi NguyenJuan Carrique-Mas

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