Abstract：Objective To investigate the presence of enterotoxins and antimicrobial resistance of Staphylococcus aureus (S. aureus) in food and food poisoning samples in Guangzhou City. Methods According to the national food safety standards and related literatures, the presence of enterotoxins and antimicrobial resistance was examined in 118 strains of S. aureus isolated from food and food poisoning samples and perserved in theMicrobiology Laboratory in Guangzhou Municipal Center for Disease Control and Prevention during 2010-2016. Results Among the 118 strains of S. aureus, 70 (59.32%) were capable of producing enterotoxins, and fast food and food poisoning samples had higher positive rates. Enterotoxins (SEA-SEE) of the 70 enterotoxin-producing strains were examined by fluorescent PCR assay, and the positive rates of SEA, SEB, SEC, SED and SEE were 29.20%, 17.70%, 11.50%, 15.93% and 25.67% respectively. 41.42% of the enterotoxin-producing strains contained twoor more kinds of enterotoxinins. Among the 118 strains detected, 104 (88.14%) were resistant to one or more antimicrobials. The positive rate of penicillin G resistance reached 71.19%. 5 methicillin-resistant Staphylococcus aureus (MRSA) strains were detected, accounting for 4.24%. Methicillin resistance gene (mecA) was also detected. Conclusions Supervision on the food safety risk should be strengthened in Guangzhou City since the positive rates of enterotoxins and antimicrobial resistance of S. aureus are high and MRSA is presented.
张健,陈惠玲,邓志爱,罗健梅,刘巧谊,吴新伟,白志军. 广州市食源性金黄色葡萄球菌肠毒素及耐药分析[J]. 实用预防医学, 2018, 25(4): 398-400.
ZHANG Jian, CHEN Hui-ling, DENG Zhi-ai, LUO Jian-mei, LIU Qiao-yi, WU Xin-wei, BAI Zhi-jun . Enterotoxins and drug resistance of foodborne Staphylococcus aureus in Guangzhou City. , 2018, 25(4): 398-400.
2018, Vol. 25 
