医院环境及医护人员金黄色葡萄球菌污染状况调查

Survey on the Contamination Status of Staphylococcus Auras Among Hospital Environment and Health Workers in Qingpu District, Shanghai

目的了解青浦区医院环境物体表面及医护人员金黄色葡萄球菌(SA)的污染状况,探讨发生耐甲氧西林金黄色葡萄球菌(MRSA)感染的影响。方法对本区两家综合性医院重点科室的环境物体表面、医护人员手和鼻腔进行现场监测采样,并进行SA/MRSA分离培养和鉴定。结果共监测样品1,980份,SA检出66份,SA阳性率为3.33%,MRSA检出8株,MRSA/SA为14.55%。SA污染高危科室为外科病房、呼吸内科、ICU等;2010年第四季度环境物体表面、医护人员手和鼻腔SA检出率均最高;在不同工种中,医生鼻腔及护士手部SA检出率最高;环境物体表面SA检出率以治疗手推车最高。结论医院环境物体表面、医护人员手和鼻腔中已广泛存在SA菌株,MRSA检出率处于较低水平。

Objective To understand the contamination status of staphylococcus auras(SA) among hospital environment and health workers there, and to explore the impact of the infection of Methicillin-resistant staphylococcus auras(MRSA). Methods On-site monitoring and sampling was conducted from environmental surfaces, hands and nasal samples of clinical stuff from key departments of two general hospitals in Qingpu District followed by SA/MRSA isolation and identification. Results A total of 1,980 samples were monitored. Among them, 66 SA copies were detected(positive rate 3.33%). 8 MRSA were detected within these 66 copies(positive rate 14.55%). The high-risk sections of SA pollution included surgical ward, respiratory Department, ICU, and etc. The highest SA detection rate in the fourth quarter of 2010 was seen in the environment surface, hands and nasal of health workers. Among different type of work, the highest SA detection rate was seen in nasal of doctors and hands of nurses. Among different locations, the highest SA detection rate was seen in the treatment trolleys. Conclusion SA strains were widely distributed in the hospital environment including the hands and nasal of health workers. The MRSA detection rate was still in a low level.