Just published @nature, the unique, in-depth, serial assessment of >2,300 people in a town in Italy for #SARSCoV2. nature.com/articles/s4158…. Besides suppression of the outbreak, it is highly instructive that *42%* were asymptomatic infections, & differentiated from presymptomatic 
The viral load of the people without symptoms was very similar to those with symptoms
It established, in a limited number of people, that asymptomatic carriers of #SARSCoV2 could infect other individuals. The frequency of this transmission is not known, and likely is low.
Symptom-free carriers
Which is why Sunday's @nytimes front page was so apropos and why wearing a mask is essential 😷
Which is why Sunday's @nytimes front page was so apropos and why wearing a mask is essential 😷
And congratulations to @IDorigatti @ConniCiavarella @ginacd1 @l_cattarino @mathModInf @UniPadova @imperialcollege and all their colleagues for this careful and extensive work, which has been illuminating in so
many respects
many respects
