Alsacs just posted on the OT board. Interesting development. Things are constantly changing as we know but this would be promising information. It makes sense. If a main symptom is coughing, seems pretty clear someone coughing would be more likely to spread something than someone who isn't. There are other factors though... length of exposure, and location of exposure, I would assume. Just because someone is asymptomatic, if you're jammed into a nursing home room for 8 hours multiple days in a row, that's different.