People in densely-populated Singapore and Hong Kong (we’re talking NYC-dense here), where white collar workers are squashed into tiny cubicles, are managing to go back to work without significant new infections. The secret is face masks. Given the toll imposed by infections, whether in terms of suffering or potential death, I’d say it makes sense to charge anyone not wearing a mask with aggravated assault. Minimum 6 months in prison and a felony record. After a few highly-publicized convictions, combined with the media’s klieg lights on the scofflaws, everyone will wear a mask.
Face masks might be capable of being sterilized in say a 225 degree oven and reused day after day.
They might be held on by rubber bands.