合肥市首例输入性SARS病例流行病学调查分析

Epidemiological Analysis of the First Imported SARS Transmission Chain

目的 分析SARS病例的传染性和传播特征 ,为控制SARS流行提供依据。方法 采用调查表 ,用查阅病历、面对面调查和电话调查相结合方式进行个案调查和线索追踪。按照接触方式分析传染源、接触关系和暴露后的危险性。结果 共追查到与本案例相关的密切接触者 115人 ,发病 2例 ,死亡 1例 ,总罹患率为 1.74 %。第二代病例死亡时间在密切接触者集中接触时间。无防护的密切接触者有被感染发病的危险性。SARS疫情经及时采取综合性措施得到控制。结论 本次SARS的感染来源于实验室。SARS接触过程中的医院聚集性应予以关注。

Objective To understand SARS transmission chain and provide basis for controlling SARS. Methods Cases and their contacts were investigated with questionnaire, case history review, telephone consulting. Meanwhile more clues were acquired. Transmission correlation infection source was reflected by transmission chain chart. Results The results showed that two cases and 115 contacts were found and one case died. Attack rate was 1.74%. Unshielded contact person was very dangerous. The epidemic was got under control timely after the comprehensive measures were taken. Conclusions Infection source of SARS come from laboratory. Hospital infection should be paid close attention to.