报告摘要:Todetermine the cross-immunity between influenza strains, we design a novelstatistical method, which uses a theoretical model and clinical data on attack rates and vaccine efficacy among school children for two seasons after the 1968A/H3N2 influenza pandemic. This model incorporates the distribution of susceptibility and the dependence of cross-immunity on the antigenic distanceof drifted strains. We find that the cross-immunity between an influenza strainand the mutant that causes the next epidemic is 88%. Our method also gives estimates of the vaccine protection against the vaccinating strain, and the basic reproduction number of the 1968 pandemic influenza.
报告主持:李美丽教授
报告语言:英语
视频: 摄影: 撰写:李美丽 信息员:唐晓亮 编辑:段然