Typically I thought viruses evolve to be less virulent because it's not an evolutionary advantage to hurt your host so much that they die. That would impede a virus' ability to reproduce and spread. So, hopefully any novel variants won't be as deadly as the original or the delta strain.
Typically I thought viruses evolve to be less virulent because it's not an evolutionary advantage to hurt your host so much that they die. That would impede a virus' ability to reproduce and spread. So, hopefully any novel variants won't be as deadly as the original or the delta strain.