RT @RolandBakerIII
JAMA: SARS-CoV-2 Transmission From People Without COVID-19 Symptoms - at least 50% of new SARS-CoV-2 infections was estimated to have originated from exposure to individuals with infection but without symptoms.
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774707?utm_source=twitter&utm_campaign=content-shareicons&utm_content=article_engagement&utm_medium=social&utm_term=010721#.X_dS3xDPxKU.twitter