WHO says asymptomatic spread of coronavirus is rare, but experts say pre-symptomatic spread is still a big concern
https://healthell.blogspot.com/2020/06/who-says-asymptomatic-spread-of.html
WHO says asymptomatic spread of coronavirus is rare, but experts say pre-symptomatic spread is still a big concern
Jonathan Serrie reports from Atlanta with an update as voters head to the primary polls in five states.
