zlacker

"Human cells" are mammal cells. Macaques and Golden Hamsters can get sick with Covid-19

The common Flu can infect horses and even chickens. "stability in human cells" means pretty much nothing

>>raverb+(OP)
I mean stability in that the sequence of the virus is much the same as it was a month before. That's not true when a virus jumps species - they evolve rapidly to the new species.