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AlbaNY_Ram
As I posted elsewhere in this thread, people don't expel individual viruses when they breathe, cough, sing, or whatever. People expel droplets that contain the virus. And while a cloth mask wouldn't stop an individual virus it is certainly effective at trapping those droplets.
As far as peer reviewed studies of masks I did a quick google search and pulled this from the first peer reviewed study that popped up:
"This study suggests that wearing a mask can potentially decrease the viral reproduction number in a general population. Wearing a mask in combination with social distancing and other measures is promising to replace the shelter-in-place orders and significantly reduce the COVID-19 burden on society." [
journals.plos.org]
"We recognize our study provides a projection based only on currently available data and estimates potential probabilities. As such, our model warrants further validation studies."
You're hanging your hat on that? It still doesn't refute the science of particle size. It basically restates my statement about spittle.