Wastewater tracking provides better data. Regardless, you're making the same logical mistake that as those folks claiming there's no evidence that flossing pre

Wastewater tracking provides better data. Regardless, you're making the same logical mistake that as those folks claiming there's no evidence that flossing prevents tooth decay. And, I seem to remember seeing a chart of ... maybe it was average time to infection on a matrix of different kinds of masks for the carrier and the exposed. The short of it was that masks on both people help lengthen the time.