Coexistence of virulence genes in methicillin-resistant Staphylococcus aureus clinical isolates
AUTOR(ES)
Rossato, Adriana Medianeira, Reiter, Keli Cristine, d’Azevedo, Pedro Alves
FONTE
Rev. Soc. Bras. Med. Trop.
DATA DE PUBLICAÇÃO
2018-06
RESUMO
Abstract INTRODUCTION: The pathogenic versatility of Staphylococcus aureus is attributed to various virulence genes, including enterotoxins and hemolysins. METHODS: Here, the virulence genes in 177 nosocomial MRSA strains in Porto Alegre, Brazil were detected by PCR. RESULTS: The overall prevalence rates were as follows: sea, 4.5%; pvl, 18.6%; tst, 27.7%; hla, 87.6%; and hld, 90.4%. No strain contained all tested genes. However, there was frequent coexistence of tst with pvl and hla with hld (40.7% and 26.6%, respectively). CONCLUSIONS: Horizontal transfer of virulence genes is very common in S. aureus, as suggested by the frequent coexistence of several virulence genes.
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