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Antimicrobials resistance patterns and the presence of stx1, stx2 and eae in Escherichia coli

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posted on 2018-12-26, 03:32 authored by Gustavo Lacerda Homem ASSUMPÇÃO, Marita Vendovelli CARDOZO, Lívia Gerbase BERALDO, Renato Pariz MALUTA, Joviany Talita SILVA, Fernando Antonio de AVILA, Douglas McINTOSH, Everlon Cid RIGOBELO

The objectives of this study were to investigate whether antimicrobial resistance (AMR) or the presence of resistance genes was associated with the occurrence of the virulence genes, stx1, stx2 andeae. Three virulence genes and 11 AMR phenotypes were examined using polymerase chain reaction (PCR) and antimicrobial susceptibility tests. From 800 samples collected in this study, 561 samples were isolatesE. coli strains , being: 90 (16.0%) carriers ofstx1, 97 (17.3%) of stx2 and 45 (8.0%) ofeae genes singly. Thirty seven (6.6%) isolates were carriers of stx1 and stx2, 110 (19.6%) were carriers of stx1 and eae and 67 (11.9%) were carriers of stx2 and eae. The most common virulence gene detected was stx1followed bystx2. The findings showed no relationship between presence of virulence factors and antimicrobial resistance. Also was not found relationship between serogroup and virulence factors.

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    Revista Brasileira de Saúde e Produção Animal

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