RE: Vaccine effect24 Oct 2020 16:35
It's looking as though immunity only lasts 3 to 5 months at most. People are catching the damn thing twice. So a vaccine, which is simply a device for forewarning our immune system to expect a given virus, cannot give any more protection than this. Unless they find some newfangled way of instigating permanent immunity, but from what little I know, this isn't likely. So herd immunity is probably impossible and this thing is going to be with us for a long time - maybe permanently like winter flu - and testing will become a permanent requirement.