摘要
目的 探讨山西省太原市传染性非典型肺炎〔严重急性呼吸综合征(SARS)〕的流行病学特征。方法 对太原市2 0 0 3年3月2 3日到5月15发生的SARS病例进行个案调查和描述性分析。结果 期间太原市常住人口中临床诊断病例3 3 6例,疑似病例484例。疑似病例中转为确诊病例2 5 3例,其余排除。临床诊断病例中18例死亡。SARS发病率、死亡率和病死率分别9 5 5 / 10万、0 5 1/ 10万和5. 3 4%。流行期间可划分为输入扩散期、上升期、高峰期、低谷期、下降期和终止期6个阶段。SARS病例的年龄构成男性以2 0～49岁为主,女性为2 0～5 9岁为主;各类职业中医务人员74(2 2 . 0 2 % )、学生(13 . 9% )、干部职员(12. 2 % )、离退人员(10 . 42 % )和工人(9. 5 2 % )占前5位;SARS病例以迎泽区为中心,向四周扩散,距离越远,疫情越轻。在SARS流行期间各阶段,新发病例有明确接触史的比例呈逐渐下降趋势,整个过程共有62 . 69%的病例无明确接触史。提示SARS病例有在潜伏期传染的可能,这有待于进一步的研究。结论 太原市SARS病例的传播和流行符合新发传染病的流行特征,其病死率与全国其他流行区相似,但低于全球平均水平。
Objective To describe the ep idemiological features of severe acute re spiratory syndrome (SARS) in Taiyuan, Shanxi Province.Method s All cases occurr ed during March 23 and May 13, 2003 were interviewed by trained investigators b y us ing standardized questionnaire followed by a descriptive analysis. Results Durin g SARS outbreak, there were 336 cases (58.33%) confirmed clinically with 18 de at hs among residents in Taiyuan, and 484 cases suspected, of which, 253 were de vel oped into SARS cases while others excluded finally. The incidence, mortality a nd fatality rate was 9.55/100 000, 0.51/100 000 and 5.34% respectively. The e pidem ic period could be divided into 3 periods, which was imported disseminate, inc rease, peak, low level, decline and terminating period. The high risk of SARS in age gr oup was 20-49 and 20-59 years old in male and female. Heath care workers, stud en ts, staffs, retired and workers were high risk populations. Most SARS cases were locatedia Yingzhe district and scatted to the other districts. The close c ontacting rate decreased with the epidemic period and 62.69% SARS cases had no previo us close contacting history. It indicated the possibility of latent infection o f SARS.Conclusion The transmission and epide mic of SARS in Taiyuan accord with the characteristics of new emerging infectiou s diseases. The fatality rate is same as other epidemic areas in China, but l ower than the global average level.
出处
《中国预防医学杂志》
CAS
2005年第1期33-35,共3页
Chinese Preventive Medicine
