Occurrence and antimicrobial resistance of Campylobacter jejuni and Campylobacter coli isolated from domestic animals from Southern Ecuador / Ocorrência e comportamento antimicrobiano de espécies termotolerantes de Campylobacter isoladas de animais domésticos no sul do Equador
Ciênc. rural (Online)
;
48(11): e20180003, 2018. tab
Article
in English
| LILACS
| ID: biblio-1045025
ABSTRACT
ABSTRACT Occurrence and antimicrobial resistance profiles of Campylobacter jejuni and C. coli strains isolated from fecal samples of dogs, pigs, cows and hens in southern Ecuador were studied. Of the 250 samples studied, 84 (33.6%) were Campylobacter positive, with C. jejuni being more frequent (78.6%) than C. coli (21.4%), with the exception of porcine samples, from which C. coli was the only species isolated. Multidrug resistance was reported in 10 Campylobacter strains (11.9%), four C. jejuni and six C. coli, and was always associated with nalidixic acid and ciprofloxacin resistance. All of the amoxicillin-resistant strains were susceptible to amoxicillin-clavulanic acid and were therefore beta-lactamase producers. However, one strain of C. jejuni remained resistant with additional resistance to gentamycin. This is an uncommon resistance pattern in Campylobacter and could reflect different resistance mechanisms.
RESUMO
RESUMO A ocorrência e resistência antimicrobiana de cepas de Campylobacter jejuni e C. coli isoladas de amostras fecais obtidas de cães, suínos, vacas e galinhas no sul do Equador foram determinadas. Das 250 amostras estudadas, 84 (33.6%) foram Campylobacter positivas, sendo C. jejuni mais frequente (78.6%) que C. coli (21.4%) com a exceção das amostras de suínos, das quais só fora isolada a espécie C. coli. Multirresistência foi encontrada em 10 cepas (11,9%), quatro C. jejuni e 6 C. coli, sempre associada à resistência ao ácido nalidíxico e à ciprofloxacina. Todas as cepas resistentes à ampicilina foram susceptíveis para amoxicilina-ácido clavulánico demonstrando que foram produtoras de beta-lactamase. Porém, uma cepa de C. jejuni permaneceu sendo resistente, apresentando, também, resistência à gentamicina. Este é um padrão de multirresistência incomum em Campylobacter e pode refletir diferentes mecanismos de resistência.
Full text:
Available
Index:
LILACS (Americas)
Type of study:
Screening study
Country/Region as subject:
South America
/
Ecuador
Language:
English
Journal:
Ciênc. rural (Online)
Journal subject:
Sa£de Ambiental
Year:
2018
Type:
Article
Affiliation country:
Chile
/
Ecuador
Institution/Affiliation country:
Universidad Austral de Chile/CL
/
Universidad Técnica Particular de Loja/EC
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