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目的分析北京市甲型H1N1流感临床病例流行病学特征和临床治疗效果,为甲型H1N1流感预防控制提供科学依据。方法对北京市2009年5月16日-9月15日发病的593例甲型H1N1流感住院病例进行流行病学描述。结果 593例病例以青壮年为主,其中55.1%为输入性病例,聚集性病例336例,主要来自学校和家庭;92.25%病例有发热,咳嗽、咳痰、流涕等流感样症状,平均持续时间为(5.5±2.6)d,平均住院时间5～18 d。结论北京市甲型H1N1流感发病比较平稳;疫情预防控制策略和病例治疗方法随着对甲型H1N1流感认识水平提高而调整;甲型H1N1流感纳入季节性流感常规监测是控制其流行的有效措施。
Objective To analyze the epidemiological characteristics and clinical effects of clinical cases of Influenza A (H1N1) in Beijing and provide a scientific basis for the prevention and control of Influenza A (H1N1). Methods An epidemiological study of 593 cases of influenza A (H1N1) inpatients in Beijing from May 16 to September 15, 2009 was conducted. Results A total of 593 cases were young and middle-aged, 55.1% were imported cases and 336 cases were concentrated cases, mainly from schools and families. 92.25% of the cases had fever-like symptoms, cough, expectoration and runny nose The time was (5.5 ± 2.6) days and the average length of stay was 5-18 days. Conclusions The incidence of Influenza A (H1N1) in Beijing is relatively stable. The prevention and control strategies of epidemic situation and the treatment methods of cases are adjusted with the increasing awareness of Influenza A (H1N1). Influenza A (H1N1) influenza is routinely controlled by seasonal flu to control its epidemic.