Enterococos resistentes isolados de leite cru de ovelha e queijos da região Sul do Brasil

Ciencia Rural

article

Débora Buzatto de Souza¹  Rebeca Inhoque Pereira¹  Creciana Maria Endres²  Jeverson Frazzon²  Janira Prichula¹  Ana Paula Guedes Frazzon¹ 

[1]Universidade Federal de Ciências da Saúde de Porto Alegre

[2]Universidade Federal do Rio Grande do Sul

关键词: Enterococcus;    dairy products;    ewe’s milk;    antibiotic resistance;    One Health.;   

DOI  :  10.1590/0103-8478cr20220288

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Enterococci have been used as sentinel organisms for monitoring antimicrobial resistance in food, humans, and other animals. In this sense, the present study evaluated the antimicrobial susceptibility profile and the presence of genes associated with resistance to erythromycin (msrC and ermB) and tetracycline [tet(M) and/or tet(L)] in enterococci isolated from raw sheep’s milk and cheeses (colonial, feta-, and pecorino-type) from South region of Brazil. A total of 156 enterococci were isolated from milk (n=80) and cheese (n=76) samples, identified by MALDI-TOF. Enterococcus faecalis (50.6%; n=79) was the most frequent species isolated from both samples. According to in vitro susceptibility tests, enterococci strains were not susceptible to the most commonly antimicrobial agents used in human and veterinary medicine. The frequency of MDR strains in enterococci isolated from milk (53.7%) was higher than those from cheese (24.2%). The tet(M) gene was the most commonly detected among tetracycline not-susceptible strains. The present study provided the first evidence of antimicrobial not-susceptible enterococci in raw sheep’s milk and cheeses in South Brazil. Drug-resistant strains, particularly those that are MDR, constitute a One Health issue.

【 授权许可】

Unknown