Aung Kyaw Thu, Hsu Li Yang, Koh Tse Hsien, Hapuarachchi Hapuarachchige Chanditha, Chau Man Ling, Gutiérrez Ramona Alikiiteaga, Ng Lee Ching
Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore, 138667 Singapore.
School of Chemical and Biomedical Engineering, College of Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459 Singapore.
Antimicrob Resist Infect Control. 2017 Sep 8;6:94. doi: 10.1186/s13756-017-0255-3. eCollection 2017.
We characterised 227 isolates from retail food and food handlers' gloves samples obtained through food surveillance and risk assessment studies between 2011 and 2014. Of 227 isolates, five (2.2%) were methicillin-resistant and belonged to sequence types ST80 ( = 3) and ST6 ( = 2). All five isolates belonged to SCC type IV, were Panton-Valentine leukocidin -negative and staphylococcal enterotoxin genes-positive. Resistance to azithromycin was found in ST80 isolates, in addition to resistance to beta-lactams. Our finding of two clinically relevant methicillin-resistant (MRSA) strains (ST80 and ST6) in ready-to-eat food and food contact surfaces at retail in Singapore suggests food and food contact surfaces as potential environmental sources of MRSA in the community.
我们对2011年至2014年间通过食品监测和风险评估研究从零售食品和食品处理人员手套样本中分离出的227株菌株进行了特征分析。在227株分离菌株中,有5株(2.2%)对甲氧西林耐药,属于序列类型ST80(=3)和ST6(=2)。所有5株分离菌株均属于IV型葡萄球菌染色体盒(SCC),均为杀白细胞素阴性且葡萄球菌肠毒素基因阳性。除对β-内酰胺类耐药外,ST80分离菌株还对阿奇霉素耐药。我们在新加坡零售的即食食品和食品接触表面发现了两株具有临床相关性的耐甲氧西林金黄色葡萄球菌(MRSA)菌株(ST80和ST6),这表明食品和食品接触表面可能是社区中MRSA的潜在环境来源。