3 ms·
I don't believe that the protection is expected to expire that quickly. That's simply how long we have verified that it lasts.
by TheCoelacanth 6y ago
I don't believe that the protection is expected to expire that quickly. That's simply how long we have verified that it lasts.
- nikolay 6y agoTitres of antibodies drop in time. You can't expect this to last forever. Plus, vaccines are less effective against certain variants even at peak titres, so, who knows how effective a vaccine administered today will be in the variants in circulation 6 months from now. Plus, mass vaccinations apply evolutionary pressure and although they slow the spread and thus the variability, they force only new variants or straints to spread, which could send us back to square one.