Viruses, understand/evolve/mutate over time not to destroy their hosts.
But when a “species jump” takes place then it is a different ball game.
The new species lacks the delicate balance between host and virus that is essential for both - you have many of these symbiotic relationships ongoing in your mortal frame everyday.
So, often the new species is decimated when infected.
It is what it is, millions are dead - millions are dying. Idiots roam the Internet posting a wide variety of “Aids is not real” garbage - and the jokes about sex with monkeys is the lowest common denominator.
Sometimes it makes me very sad.
MA
FYI