I mean, how much is that nonsymptomatic transmission as a percentage of total transmission?
我的意思是,非症状传播占总传播的百分比是多少?
TED演讲(音频版) 2020年7月合集
And so if you add in the never symptomatic to the presymptomatic, do you get above 50 percent of the transmission is actually from nonsymptomatic people?