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目的了解阳江市甲型H1N1流感暴发的流行特征和影响因素,探索预防控制流感的方法。方法分析阳江市2009年甲型H1N1流感暴发疫情,并对社区人群按年龄分层抽样进行血清学回顾性调查。结果阳江市共报告甲型H1N1流感暴发疫情42起;10下旬至11月为发病高峰期;暴发疫情中小学占50.00%,中学占38.10%;患者男性占53.38%,女性占46.42%;社区人群甲型H1N1流感感染率为30.63%。结论学生群体为甲型H1N1流感暴发疫情的高危人群,针对疫情发生的不同时期相应地调整防控策略的防控效果显著;防控措施采取时间越早,暴发疫情持续时间就越短,发病率就越低。
Objective To understand the epidemiological characteristics and influencing factors of Influenza A (H1N1) outbreak in Yangjiang and to explore ways to prevent and control Influenza. Methods The epidemic situation of Influenza A (H1N1) outbreak in 2009 in Yangjiang City was analyzed. Serum retrospective investigation was conducted among the community population by stratified by age. Results A total of 42 outbreaks of influenza A (H1N1) were reported in Yangjiang from the 10th to the 11th of November. Outbreaks of primary and secondary schools accounted for 50.00% and 38.10% respectively. Men and women accounted for 53.38% and 46.42% respectively. Community groups Influenza A H1N1 influenza infection rate was 30.63%. Conclusions The student population is a high-risk group of outbreaks of Influenza A (H1N1). The prevention and control strategies for the prevention and control strategies are adjusted accordingly for different periods of occurrence of the outbreak. The earlier the prevention and control measures are taken, the shorter the duration of outbreaks and the outbreak rate Lower.