Most people appear to be wearing the wrong sort of mask if they want to protect themselves from a virus. The mask in the picture is worn to stop the wearer from transmitting the disease through the nose or mouth.
The use of face masks is becoming more common, but do they really protect against #coronavirus?
Professor Raina MacIntyre of @KirbyInstitute and Dr @doctorahmad75 of @UNSWMedicine explain.https://newsroom.unsw.edu.au/news/health/coronavirus-how-worried-should-i-be-about-shortage-face-masks-or-can-i-just-use-scarf?utm_source=unsw&utm_medium=social-team …
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They help 80%. But not at all if you cannot buy them.
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