Sadeghifard Nourkhoda, Kazemian Hossein, Mohebi Reza, Sekawi Zamberi, Khosravi Afra, Valizadeh Nasrin, Ghafourian Sobhan
Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran.
Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.
GMS Hyg Infect Control. 2015 Jul 14;10:Doc12. doi: 10.3205/dgkh000255. eCollection 2015.
Colonization of the human and animal intestinal tract with potential pathogenic bacteria is correlated with the risk of contamination of food products. The current study analyzed the prevalence of Enterococcus faecalis and Escherichia coli O157H7 in ground meat in Ilam, Iran. Both index organisms were identified following standard food microbiological methods. For E. faecalis, the susceptibility to vancomycin was tested, and PCR was used to check for the vanA gene. E. faecalis was present in all 24 ground meat samples, with no E. coli O157H7 detected in samples. The analysis showed the presence of the vanA gene in 5/24 vancomycin resistant enterococci. In conclusion, this study for the first time demonstrates the presence of vancomycin-resistant enterococci in ground meat in Iran. This observation warrants further epidemiologic investigation and should be followed up in the future.
人类和动物肠道被潜在病原菌定植与食品污染风险相关。本研究分析了伊朗伊拉姆市绞碎肉中粪肠球菌和大肠杆菌O157:H7的流行情况。按照标准食品微生物学方法鉴定这两种指示菌。对于粪肠球菌，检测其对万古霉素的敏感性，并采用聚合酶链反应（PCR）检测vanA基因。在所有24份绞碎肉样品中均检测到粪肠球菌，样品中未检测到大肠杆菌O157:H7。分析显示，在24株耐万古霉素肠球菌中有5株存在vanA基因。总之，本研究首次证实伊朗绞碎肉中存在耐万古霉素肠球菌。这一观察结果值得进一步进行流行病学调查，并且今后应持续跟进。
