Antimicrobial susceptibility and presence of resistance enterotoxins/enterotoxin-likes genes inStaphylococcus aureusfrom food

摘要

The aim of this study was to investigate the antibiotic resistance profiles and staphylococcal enterotoxins/enterotoxin-likes genes (se/sel) of Staphylococcus aureus from food. About 93 S. aureus strains were screened and 43 strains harbored se/sel genes, which were from raw meat, pickles, cooked meat, egg products, bean products, aquatic products, grains and fresh vegetables, respectively. Among the 21 se/sel genes, selx gene was found in 30/93 (32.26%) strains, followed by seb, ser, sea, sec, selp, sell and set. About 50/93 strains carried 10 antibiotic resistance genes. The prevalence rate of norA, chlA and grlA genes was relatively high, followed by ermC, tetA, aac6ʹ/aph2”, ermB, tetM, msrA and blaZ. Sixty-two strains of the 93 S. aureus isolates (62/93, 66.67%) were multidrug-resistant (≥3 antimicrobial agents).