Magnitude and Determinants of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Household Transmission: A Longitudinal Cohort Study.
J Daniel KellyScott LuKhamal AnglinMiguel Garcia-KnightJesus Pineda-RamirezSarah A GoldbergMichel TassettoAmethyst ZhangKevin DonohueMichelle C DavidsonMariela RomeroRuth Diaz SanchezManuella DjomaleuSujata MathurJessica Y ChenCarrie A FormanVenice ServellitaRubi D MontejanoJoshua R ShakGeorge W RutherfordSteven G DeeksGlen R AbediMelissa A RolfesSharon SaydahMelissa Briggs-HagenMichael J PelusoCharles ChiuClaire M MidgleyRaul AndinoJeffrey N MartinPublished in: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (2022)
Among households including individuals with symptomatic SARS-CoV-2 infection, both vaccinated-to-vaccinated and unvaccinated-to-unvaccinated transmission of SARS-CoV-2 to household contacts was common. Because vaccination alone did not notably reduce risk of infection, household contacts will need to employ additional interventions to avoid infection.