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复旦大学公共卫生学院余宏杰课题组在人感染禽流感H7N9的流行病学特征变化和大流行风险评估领域取得重要进展,相关研究成果日前在线发表于《柳叶刀-感染性疾病》期刊。研究人员聚焦了2016—2017年第五波禽流感H7N9的流行病学特征和临床严重性。结果发现,第五波疫情较往年出现得更早,地理扩散范围更广,发病更多。从第一波到第五波疫情,16~59岁病例的比例从41%逐渐上升至57%。第四波和第五波疫情中城乡结合部及农村病例
Yu Hongjie from Fudan University School of Public Health has made important progress in the field of epidemiological characteristics of human infection with H7N9 and pandemic risk assessment. Relevant research results have been published online in Lancet-Infectious Diseases. Researchers focused on the epidemiological features and clinical severity of the fifth wave of H7N9 bird flu in 2016-2017. The results showed that the fifth wave of epidemic occurred earlier than in previous years, a wider geographical spread, more incidence. From the first wave to the fifth wave of outbreaks, the proportion of cases aged 16 to 59 gradually increased from 41% to 57%. The fourth wave and the fifth wave of outbreaks in urban and rural areas and rural cases