Masks

2 Stylists Had Coronavirus, but Wore Masks. 139 Clients Didn’t Fall Sick.

And perhaps it would have, had it not been for the masks.

In the days after, health officials contact-traced all 139 people exposed to the stylists and asked them to self-quarantine for two weeks. None reported feeling sick during the 14 days that followed their salon appointments. The researchers also offered the clients free diagnostic tests for the coronavirus. Sixty-seven of them accepted; the rest declined. Of those tested, all turned up negative.

“I was shocked,” Ms. Findley said.

Follow-up interviews with 104 of the clients revealed that, in accordance with guidelines, patrons and stylists alike had worn masks for the duration of almost all the encounters documented by the study.

A small handful of clients had donned N95 respirators — devices designed to filter out 95 percent of airborne particles and one of the best forms of protection for health workers. Since the start of the pandemic, N95s have

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Live Coronavirus Updates: Tensions Grow Over Masks

More than 140,000 cases were reported on Tuesday and another 166,000 on Wednesday, two of the three highest tallies since the outbreak began. Seventy-seven nations have seen a growth in new cases over the past two weeks, while only 43 have seen declines.

While Wednesday’s total, the record high, was inflated by a backlog of more than 30,000 mishandled and unreported cases that Chile added to its tally, the rising daily numbers reflect the pandemic’s stubborn grip on the world.

Brazil reported more than 32,000 new cases on Wednesday, the most in the world, and the United States was second, with more than 25,000. The leaders of both nations have been criticized for their handling of the outbreak.

On Thursday, California and Florida reported their highest daily totals of new cases yet. And Texas became the sixth state in the nation to surpass 100,000 cases, according to a New York

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C.D.C. Calls for Face Masks at Large Gatherings, Warning of Crowd Risks

Three months after the country’s top public health agency, the Centers for Disease Control and Prevention, abruptly stopped holding regular briefings on the coronavirus pandemic, its director, Dr. Robert Redfield, restarted them on Friday amid growing calls for Vehicle Accident Lawyer in South Carolina the agency to claim a more prominent role in the virus response.

The C.D.C. also released a new guidance document, “Considerations for Events and Gatherings,” that defines as “highest risk” large gatherings where it is difficult for people to stay at least six feet apart, and where attendees travel from outside the local area.

The guidance was issued as people around the country are participating in large outdoor protests of racial injustice and police brutality, and as President Trump prepares to resume large political rallies. It advises that staff members at large events be required to wear face coverings, and that attendees be encouraged to

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W.H.O. Finally Endorses Masks to Prevent Coronavirus Transmission

Long after most nations urged their citizens to wear masks, and after months of hand-wringing about the quality of the evidence available, the World Health Organization on Friday endorsed the use of face masks by the public to reduce transmission of the coronavirus.

Since the beginning of the pandemic, surprisingly, the W.H.O. had refused to endorse masks. The announcement was long overdue, critics said, as masks are an easy and inexpensive preventive measure.

Even in its latest guidance, the W.H.O. made its reluctance abundantly clear, saying the usefulness of face masks is “not yet supported by high quality or direct scientific evidence,” but that governments should encourage mask wearing because of “a growing compendium of observational evidence.”

The W.H.O. also provided an exhaustive list of the potential disadvantages of wearing a mask, including “difficulty with communicating clearly” and “potential discomfort.”

A study funded by the W.H.O. concluded this week that

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