[fullmetal]

Asymptomatic transmission is probably a big deal: https://www.cnn.com/2020/03/14/health/co...index.html

It's probably a big factor in why the R0 is so high.

Goose, the answer to your question is in that article:

Canadian, Dutch and Singaporean researchers looked at the same outbreaks in Tianjin and Singapore and found that infection was transmitted on average 2.55 days and 2.89 days before symptom onset respectively in each location.

"Our analysis would suggest that presymptomatic transmission is pretty commonplace," said the study's lead author, Caroline Colijn, who leads the mathematics, genomics and prediction in infection and evolution research group at Simon Fraser University in British Columbia.

[fullmetal]

Asymptomatic transmission is probably a big deal: https://www.cnn.com/2020/03/14/health/co...index.html

It's probably a big factor in why the R0 is so high.

Goose, the answer to your question is in that article:

Canadian, Dutch and Singaporean researchers looked at the same outbreaks in Tianjin and Singapore and found that infection was transmitted on average 2.55 days and 2.89 days before symptom onset respectively in each location.

"Our analysis would suggest that presymptomatic transmission is pretty commonplace," said the study's lead author, Caroline Colijn, who leads the mathematics, genomics and prediction in infection and evolution research group at Simon Fraser University in British Columbia.