"Simulations indicate if 80% of the population wore masks, transmission rate would decrease by 90%," said Hudson.

MADISON COUNTY DOCTORS URGE PEOPLE TO WEAR MASKS AS CORONAVIRUS CASES INCREASE

and

Face masks critical in preventing spread of COVID-19

and

If 80% of Americans Wore Masks, COVID-19 Infections Would Plummet, New Study Says 

and

Face Masks May Be The Key Determinant Of The Covid-19 Curve, Study Suggests