[Epidemiological characteristics of 420 influenza A (H1N1) cases confirmed in the early stage of the epidemic in mainland China].

@article{Li2009EpidemiologicalCO,
  title={[Epidemiological characteristics of 420 influenza A (H1N1) cases confirmed in the early stage of the epidemic in mainland China].},
  author={Ya-pin Li and Quan Qian and Li-qun Fang and Hong Yang and Mao-ti Wei and Yan Gao and Hua Yang and Yong Zhang and Wu-chun Cao},
  journal={Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi},
  year={2009},
  volume={30 11},
  pages={1102-5}
}
OBJECTIVE To describe the epidemical characteristics of A (H1N1) influenza identified in the early stage (from May 11 to June 22, 2009) of the epidemic, in mainland China. METHODS Epidemical characteristics of 420 confirmed A (H1N1) influenza cases reported from May 11 to June 22, 2009 were analyzed descriptively, including the distribution of age, sex, source of infection, main symptoms and incubation period. RESULTS A total of 77.8% early cases in mainland China were imported from other… CONTINUE READING