Scientists at the University of Maryland found in laboratory experiments that the masks “significantly” reduced the amounts of airborne viruses from infected patients.
from Hindustan Times - india https://ift.tt/3e1wdT0 Scientists at the University of Maryland found in laboratory experiments that the masks “significantly” reduced the amounts of airborne viruses from infected patients.
Wearing masks in public places may contain virus spread: Study
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April 06, 2020
April 06, 2020
