Case Definitions used in Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study

Close Contact Definition and Contact Tracing Used in Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study

Assumptions used to determine transmission relationships in Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study

Secondary Attack Rate Definition Used in Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study

Local Reproductive Number Definition Used in Household secondary attack rate of COVID-19 and associated determinants in Guangzhou, China: a retrospective cohort study