Thread by @vipintukur

What might #Covid19 look like once the pandemic is over?

With #SARS2 it’s already clear that immunity from infection wanes..it might follow..in which protection from infection erodes over time, but protection from severe disease does not. So it would behave like COMMON COLD 1/

Or it’d be like #FLU, where immunity vs. severe disease also wanes. Influenza is a more sobering analogy. It, too, causes infections throughout life, but reinfections are often more severe than those caused by the four endemic coronaviruses. 2/

So, the outlook is different if immunity against severe #COVID declines as well. In that case paradoxically, it might be best if the virus keeps infecting people frequently... Avoiding infection at all costs might not be the best strategy for vaccinated people. 3/

And, this is exactly what #Denmark is doing. The Danish government dropped all the restrictions this month after achieving a high vaccination rate.

The whole world is watching… what happens next!

A great piece by @kakape👇in conversation w/ @trvrb 4/

science.org/content/articl…