One of the first surprising cases I remember in the US was a Washington-based church choir singing while following all concurrently enforced precautions. I don

One of the first surprising cases I remember in the US was a Washington-based church choir singing while following all concurrently enforced precautions. I don’t expect they were doing intense dances or movements at rehearsals. The danger is simply prolonged exposure in spaces with low air flow. Edit: I’m not a doctor, I could be wrong.