How does face mask help in limiting the spread of Covid-19?
Answers
Answer:
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Explanation:
New evidence suggests the novel corona virus might be able to spread through the air. It also seems to be contagious even though people don’t have symptoms to show they are infected. Those two worrisome findings led the U.S. Centers for Disease Control and Prevention, last month, to recommend that everyone wear masks over their noses and mouths in public.
Explainer: What is a coronavirus?
With medical-grade masks in short supply, CDC recommended that these be reserved for health care workers. The public was advised to look for cloth masks they could buy or make at home.
The best guard against airborne viruses are known as N95 masks. These are what hospital workers sometimes use around people who may be sick. They are different from the masks that doctors and nurses wear in surgery. With N95 masks in short supply, the medical community has been asking the public to reserve their use for hospital teams and first responders.
But people can buy or make fabric masks. If a sick person wears one of these, the mask may catch most of their germy droplets of spit or nasal mucus. That could limit the virus from getting onto surfaces that others might touch. But these masks are designed to protect people from the mask-wearer, not the other way around.
And no mask is a replacement for hand washing and social distancing.