EastWest Gal
Thinks s/he gets paid by the post
Wife came down with symptoms and tested positive earlier this week. I, somehow, had no symptoms and tested negative. Go figure...
There are a number of studies that suggest that 10-20% of those infected cause about 80% of subsequent infections, whereas 60-75% of those infected do not subsequently infect others. The number of virus particles in the person's airways seem to be highly variable among those infected. It is discussed in this paper and there are links to others.
https://pubmed.ncbi.nlm.nih.gov/33861198/