Yes because it was an immune escape variant. It’s mutating like every cold or flu virus does to outwit your immune system or vaccine. That’s why you can get it again in a year or few.
Measles doesn’t mutate, nor does chicken pox. You get it once and never again. Not so with cold or flu.
Yes because it was an immune escape variant. It’s mutating like every cold or flu virus does to outwit your immune system or vaccine. That’s why you can get it again in a year or few.
Measles doesn’t mutate, nor does chicken pox. You get it once and never again. Not so with cold or flu.