Covid, a mystery of super speakers: they cause 80% of infections - World
8/11/2020, 1:46:47 PM
Study by the Fred Hutchinson Cancer Research Center in Seattle. The maximum viral load is concentrated in 48 hours (ANSA)
8/11/2020, 1:46:47 PM
Study by the Fred Hutchinson Cancer Research Center in Seattle. The maximum viral load is concentrated in 48 hours (ANSA)