‘Also, if the least-severe strain is spreading faster than the most-severe strain (a reasonable assumption, since the less-severe strains don’t kill their hosts, and have a greater chance of spreading), that could explain much of the declining fatality rates.’
interesting take...could very well be...
I think that’s what my daughter had. Positive for Covid but had head ache, low fever, mild flu symptoms ... and the only person she spread it to was her fiance ... hmmmm ... anyway it hung on for a long boring stretch. She might be about done now.