Coronavirus was even more contagious at beginning of pandemic than experts thought, study finds
https://healthell.blogspot.com/2020/09/coronavirus-was-even-more-contagious-at.html
Coronavirus was even more contagious at beginning of pandemic than experts thought, study finds
The novel coronavirus was more than twice as contagious at the start of the pandemic than first thought, according to a new study from Duke University.