Objective:To find out the contamination status of HIV during routine exodontia and control the nosocomial infection.

对常规拔牙术中艾滋病病毒污染情况进行调查,进一步控制医源性感染。

Objective To enhance the ability to control the incidence rate and the omissive reporting rate of nosocomial infection in tumor hospital, and analyse the reasons.

了解肿瘤患者医院感染病率及漏报率，分医院感染及漏报的原因，以便加强监控。