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目的 分析内蒙古自治区传染性非典型肺炎 [严重急性呼吸综合征 (SARS) ]流行情况。方法 利用法定报告传染病资料进行统计分析。结果 2 0 0 3年 3月 2 7日内蒙古自治区报告首例SARS病例 ,截止到 5月 2 0日 ,全区累计报告 44 6例 (诊断病例 2 87例、疑似病例 15 9例 )。累计报告出院 6 1例 (诊断 5 6例、疑似 5例 ) ,排除 131例 (诊断 10例、疑似 12 1例 ) ,诊断病例死亡 2 5例 ,病死率为 8.7%。累计报告病例分布在 9个盟 (市 ) 30个旗 (县 )。按发病时间统计 ,发病集中在 4月 13～ 2 9日 ,占总数的 6 7.7%。 4月 2 4日开始发病呈波动性下降 ,5月 3～ 8日每日平均发病数为 5 .3例 ,5月 9日以后每日平均发病数为 0 .3例。结论 内蒙古自治区SARS流行过程大致可以分为 3个时期 :第一时期即 3月 18日至 4月 15日 ,为输入性感染期 ,发病呈缓慢上升 ,涉及 6个盟 (市 ) 14个旗 (县 ) ,特点是家庭聚集性感染 ;第二时期即 4月 16～ 2 8日 ,为继发性感染期 ,发病大幅度上升 ,涉及 10个盟 (市 ) 2 4个旗 (县 ) ,特点是医院成为继发性感染的重要来源 ;第三时期即 4月 2 9日至今 ,为散发感染期 ,发病有小的波峰 ,涉及到 10个盟 (市 )、38个旗 (县 ) ,特点是无接触史者发病比例高 ,但未形成明显的传播链条。
Objective To analyze the epidemic situation of SARS (Severe Acute Respiratory Syndrome) in Inner Mongolia Autonomous Region. Methods The statutory report of infectious disease data were used for statistical analysis. Results The first SARS case was reported in Inner Mongolia Autonomous Region on March 27, 2003. As of May 20, a total of 446 cases were reported in the region (2 87 cases of diagnosis and 15 9 cases of suspected cases). A total of 61 cases were discharged (56 cases were diagnosed and 5 suspected), 131 cases were excluded (10 cases were diagnosed and 12 cases were suspected), 25 cases were diagnosed as death cases and the case fatality rate was 8.7%. Cumulatively reported cases are distributed in 30 banners (counties) of 9 alliance (cities). According to the time of onset statistics, the incidence concentrated in April 13 ~ 29, accounting for 6 7.7% of the total. On April 24, the incidence began to fluctuate declining. On May 3 ~ May 8, the daily average incidence was 5.3 cases, and the average daily incidence after May 9 was 0. 3 cases. Conclusion The epidemic of SARS in Inner Mongolia Autonomous Region can be roughly divided into three periods: the first period is from March 18 to April 15, the period of imported infection is rising slowly, involving 14 flags of 6 alliance (cities) The second period is from April 16 to February 28, which is the period of secondary infection. The incidence has risen sharply. It involves 24 banners (counties) of 10 allies (cities), and is characterized by The third period is from April 29 to the present, for the period of infection distribution, the occurrence of a small peak, involving 10 League (city), 38 flags (counties), the characteristics of the It is a high incidence of non-contact history, but did not form a clear chain of transmission.