> There are better ways to spend our resources than on redoing the world's HVAC
Before we had vaccines, ventilation improvements likely prevented a significant amount of transmission. If ventilation can reduce the transmission of other illnesses, and prevent the next COVID, it's pretty hard to argue that it's a bad use of resources.
> climate change
Yes, that's important. But it's not a zero sum game where investing in public health somehow takes away from investing in environmentally friendly technology.
We now have herd immunity in North America. Even a top doc at Johns Hopkins says so https://www.wsj.com/articles/herd-immunity-is-near-despite-f...
Cases are crashing in in Latin America and South Asia. The only place where it may still rise in big numbers are the prison islands in Oceania.
There are better ways to spend our resources than on redoing the world's HVAC, like maybe, y'know, climate change.