..were political in nature.

Masks were an early attack point for Righties who a) didn’t want to wear them, and b) used them to identify one’s politics. They were always effective (depending on type) for reduction of spread of COVID.

Vaccination did greatly reduce the spread. I know this personally, having repeatedly been vaccinated but never gotten the disease.

I don’t know if any absolute link between a Chinese lab and spread of COVID. That was the basis of many conspiracies, of course. The virus appeared in people linked to the market in Wuhan, though.

And so on. Including Trump’s dumb ideas and wacky ‘cures.’