SvennoJ said: You should have natural immunity to the flu and cold virus as well by now, why do we still have the flu shot. Why am I still getting a cold. |
Influenza is kept in check by the fact we're all exposed to it multiple times beginning in early childhood, a time when our immune system is far more able to deal with novel threats. When it got to the Americas, it decimated populations with a very high mortality rate.
The same probably applies for a lot of the other respiratory viruses too.
Personally, I doubt SARS-CoV-2 will be more dangerous than the other endemic coronaviruses. It could even be *less* dangerous than the other four since the little bastards, unlike Omicron, will happily infect lungs when given the chance, and have caused quite lethal outbreaks in care facilities.