We investigate the distribution of numbers of secondary cases in households in the Office for National Statistics COVID-19 Infection Survey (ONS CIS), stratified by timing of vaccination and infection in the households. This shows a total effect of a statistically significant approximate halving of the secondary attack rate in households following vaccination.
翻译:我们调查了国家统计局COVID-19感染调查(COS CIS)中家庭二级病例的分布情况,按接种时间和家庭感染时间划分,这显示,在统计上显著地将接种疫苗后家庭二级袭击率减半的总影响。