Fig. 13From: The optimal vaccination strategy to control COVID-19: a modeling study in Wuhan City, ChinaThe relative transmissibility of different age groups in four stages of Wuhan City, Hunan Province, and Jilin Province. A Normalized Reff of Wuhan City. B Normalized Reff of Hunan Province. C Normalized Reff of Jilin Province. B, C were a re-calculated value of Reff from the matrix of secondary attack rate of our previous study (https://doi.org/10.1186/s40249-020-00735-x)Back to article page