Masks should fit better or be doubled up to protect against coronavirus variants
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Federal health officials Wednesday urged Americans to consider wearing two masks as one of several strategies to better protect themselves against the threat of more contagious variants of the coronavirus.To get more news about FFP2 protective mask, you can visit tnkme.com official website.
Two methods substantially boost fit and protection, according to a CDC report and updated guidance on its website. One is wearing a cloth mask over a disposable surgical mask. The second is improving the fit of a single surgical mask by knotting the ear loops and tucking in the sides close to the face to prevent air from leaking out around the edges and to form a closer fit.
Both of those methods reduced exposure to potentially infectious aerosols by more than 95 percent in a laboratory experiment using dummies, the report said.
“We know that universal masking works,” said John T. Brooks, medical officer for the Centers for Disease Control and Prevention’s covid-19 response. “And now these variants are circulating … whatever we can do to improve the fit of a mask to make it work better, the faster we can end this pandemic.”A year after the coronavirus’s arrival in the United States — with the death toll approaching 500,000 — the updated guidance stresses the importance of mask-wearing as one of the best defenses against more transmissible variants, along with social distancing, avoiding crowds and poorly ventilated indoor spaces, and practicing frequent hand-washing.
The guidance comes at a potentially perilous moment, as health officials race to vaccinate tens of millions of people to protect them from more transmissible and possibly more lethal variants but remain hampered by a limited vaccine supply.
It also represents a new administration’s effort to present clear masking guidelines after mixed messaging and the politicization of the issue appear to have bewildered many Americans. Early last year, health officials did not urge their use because of concerns health workers would be unable to get them. Even after health officials reversed course last April after realizing that people without symptoms were driving the virus’s spread, President Donald Trump refused to wear a mask and ridiculed those who did. In part as a result, many Americans still disdain them.
CDC Director Rochelle Walensky acknowledged at a White House briefing Wednesday that some people may be “both tired of hearing about masks as well as tired of wearing them.” She noted that “masks can be cumbersome, they can be inconvenient.”
Conceding the changing guidance since the start of the pandemic, Walensky said that knowledge about the virus has evolved over time.
“The science is clear,” she said. “Everyone needs to be wearing a mask when they’re in public or when they are in their own home but with people who do not live in their household. This is especially true with our ongoing concern about new variants spreading in the United States.”
Walensky said that research shows that coronavirus infections and deaths have decreased when policies mandating masks are implemented. “With cases, hospitalizations and deaths still very high, now is not the time to roll back mask requirements,” she said.