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目的了解本次甲流暴发的流行特征,探讨引起本次暴发的感染来源。方法制定统一的个案调查表对病例及前期因急性呼吸道感染症状缺课的病例进行个案调查,并采取上述前期缺课的病例血清进行甲流抗体的检测。结果截止2009年10月1日,小河区第四实验小学共报告确诊病例23例,罹患率2.11%,发病高峰在9月18日,所有病例无外出史。从8月30日-9月17日,共有18名急性呼吸道感染的病例缺课,发病高峰在9月8日和9月14日,正好在确诊病例发病高峰的潜伏期之内。结论本次甲流暴发可能与前期急性呼吸道感染病例有关。
Objective To understand the epidemic characteristics of the outbreak of ametropia and to explore the sources of infection that caused the outbreak. Methods A case-control questionnaire was made to investigate the cases and pre-absent cases of symptoms of acute respiratory infections, and to detect the antibody of influenza A cases by taking the above-mentioned pre-absent cases of sera. Results As of October 1, 2009, Xiaohe Fourth Experimental Primary School reported a total of 23 confirmed cases with an attack rate of 2.11%. The peak incidence peak was on September 18, and all cases had no history of going abroad. From August 30 to September 17, a total of 18 cases of acute respiratory infections were absent. The peak incidence was on September 8 and September 14, just within the incubation period of the peak incidence of the confirmed cases. Conclusion The outbreak of this outbreak may be related to the cases of early acute respiratory infection.