What is the probability of getting #COVID19 if a household member has it? This pooled study found a household secondary attack rate of ~17%. Important variables driving this: "Household size & composition, contact patterns, testing & isolation practices"
Household secondary attack rate (SAR) of #SARSCoV2 A rapid review The overall pooled random-effects estimate of the household SAR was 17.1% (95% CI: 13.7-21.2%). Household SAR higher among older adult contacts and among contacts of symptomatic cases.