SARS聚集性病例指示病例的特点分析

目的分析严重急性呼吸综合征(SARS)聚集性病例指示病例的特点以及在流行中的作用,为防治工作提供依据。方法采用查阅病历、面对面访谈、电话调查及现场调查相结合的方法,收集SARS聚集性病例指示病例和续发病例的基本资料。结果3起聚集性病例的指示病例都患有慢性基础性疾病,均为聚集病例的传染来源,导致了家属、医务人员和病人感染。结论SARS聚集性病例的指示病例具有重要的流行病学意义,其传染期只局限于病程的特定阶段。

Epidemiological study of the features of the index cases in SARS case clusters

Objective To understand the epidemiological characteristics of the index cases in severe acute respiratory syndrome (SARS) cases clusters and to evaluate their importance in the whole epidemic process of SARS. Methods Data of the indexSARS cases and the subsequent case clusters were collected by means of face-to-face interview in combination with fieldinvestigation and case history consultations. Results In all three SARS clusters, the index cases all had chronic disease andplayed the role of infection source that transmitted the virus to the patients' family members, attending medical staff as well asother non-SARS patients sharing the same ward with them. Conclusion The index cases played an important role in trans-mission of SARS virus among the case clusters, and their infective stages are confined within certain phases of the diseasecourse.