M-A: Household secondary attack rates of SARS-CoV-2 by variant and vaccination status.
29 Apr, 2022 | 10:57h | UTC
Commentary on Twitter
This systematic review & meta-analysis found household #SARSCoV2 secondary attack rates increased over time and were higher for variants than prior reported estimates. Vaccination was associated with reduced transmission (more for Alpha vs Delta & Omicron) https://t.co/6vwW0u3vY7
— JAMA Network Open (@JAMANetworkOpen) April 28, 2022