ReinyDays
Gold Member
The immune system weakens to the virus over time, thus the chance of you getting the virus increases over time. That is why people have gotten this more than once. It doesn’t need to mutate. The immune system to the virus weakens. So if that happens we need to continue to get boosters. Whooping cough, tetanus are two diseases where you get booster shots. Covid maybe the next one. Time will tell but that seems to be the way it is going.
Correct ... we don't know yet about this strain of SARS, but in general, the Coronaviruses tend to not impart lasting immunity ... we'll need the vaccine every year if this is the case with SARS ...