18 Nov 2020 "Research early in the pandemic suggested that the rate of asymptomatic infections could be as high as 81%. But a meta-analysis published last month

18 Nov 2020 "Research early in the pandemic suggested that the rate of asymptomatic infections could be as high as 81%. But a meta-analysis published last month1, which included 13 studies involving 21,708 people, calculated the rate of asymptomatic presentation to be 17%. ... Byambasuren’s review also found that asymptomatic individuals were 42% less likely to transmit the virus than symptomatic people." (https://www.nature.com/articles/d41586-020-03141-3 https://www.nature.com/articles/d41586-020-03141-3) 7 Jan 2021 "The baseline assumptions for the model were that peak infectiousness occurred at the median of symptom onset and that 30% of individuals with infection never develop symptoms and are 75% as infectious as those who do develop symptoms. Combined, these baseline assumptions imply that persons with infection who never develop symptoms may account for approximately 24% of all transmission." (https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774707 https://jamanetwork.com/journals/jamanetworkopen/fullarticle...)