Figure 1.

Within-household transmission dynamics of COVID-19 among 182 clusters in Shenzhen and Anqing. Key assumptions included the incubation period distribution was lognormal with median 5.1 days and mean 5.5 days [21]; susceptibility was the same for those aged 60 or above; infectiousness was the same for those aged 40 or above. (a,b) Age distribution of household contacts (stratified by infection outcome) and primary cases. (c–e) Age-specific susceptibility, age-specific infectiousness, generation time distribution and serial interval distribution. Lines and shades correspond to MAP estimates and 95% Crls, respectively. (f) Susceptibility and infectiousness of males relative to females; transmissibility in Anqing relative to Shenzhen; and relative transmissibility after versus before Wuhan lockdown. Circles and bars correspond to MAP estimates and 95% CrIs, respectively. (Online version in colour.)