We are told all the current Covid Cases are the Delta variant…
But only months ago, they were all Covid “Alpha” and “Beta” variants. Now those variants seem to have gone away.
I find that hard to believe….that the “Original” two variants of this disease simply disappeared.
While I am not an epidemiologist, this seems….strange. One would think that the transition would include a mix of the original strains for a long time, with the Delta variant adding to the case count, not taking it over all at once.