3 ms·
That's why I said typically, not always.
by dnautics 6y ago
That's why I said typically, not always.
- sudosysgen 6y agoThe majority of viruses do not mutate rapidly enough to evade immunity. The exceptions are virus with chronic infections because they can mutate much more easily, and some viruses like Influenza that can use antigenic shifts. It's really not typical. Even in all of the human cold coronaviruses, only one seems to be evolving its spike protein, and it does so quite slowly. If it was typical, we wouldn't see the amazing efficacy of vaccines against endemic diseases.