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بهترین سایت شرط بندی ایرانی
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Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Study: 100% face mask use could crush second, third COVID-19 wave

Climate change, population growth threats as malaria fight stalls

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How Much Weight Men Should Be Able to Deadlift

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Mpox strain that may be more severe and easily spread is found in L.A. County for first time

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Trastuzumab Deruxtecan Scores Two Wins in HER2-Positive Early Breast Cancer

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By Mike Moffitt, SFGATE

Updated

  • Face mask use is virtually universal in Taiwan, one of the countries least impacted by COVID-19 due to interventions. (Shown: Taipei street on May 18, 2020.) Photo: Chiang Ying-ying, AP / Copyright 2020 The Associated Press. All rights reserved.

    Face mask use is virtually universal in Taiwan, one of the countries least impacted by COVID-19 due to interventions. (Shown: Taipei street on May 18, 2020.)

    Face mask use is virtually universal in Taiwan, one of the countries least impacted by COVID-19 due to interventions. (Shown: Taipei street on May 18, 2020.)

    Photo: Chiang Ying-ying, AP

Photo: Chiang Ying-ying, AP

Face mask use is virtually universal in Taiwan, one of the countries least impacted by COVID-19 due to interventions. (Shown: Taipei street on May 18, 2020.)

Face mask use is virtually universal in Taiwan, one of the countries least impacted by COVID-19 due to interventions. (Shown: Taipei street on May 18, 2020.)

Photo: Chiang Ying-ying, AP

We’ve all heard it many times: Wear a face covering — indoors, outdoors, on trains and buses. At work, in the supermarket and at church.

But now a new modeling study out of Cambridge and Greenwich universities suggests that face masks may be even more important than originally thought in preventing future outbreaks of the new coronavirus.

To ward off resurgences, the reproduction number for the virus (the average number of people who will contract it from one infected person) needs to drop below 1.0. Researchers don’t believe that’s achievable with lockdowns alone. However, a combination of lockdowns and widespread mask compliance might do the trick, they say.

“We show that, when face masks are used by the public all the time (not just from when symptoms first appear), the effective reproduction number, Re, can be decreased below 1, leading to the mitigation of epidemic spread,” the scientists wrote in the paper published Wednesday by the Proceedings of the Royal Society A.

The modeling indicated that when lockdown periods are combined with 100% face mask use, disease spread is vastly diminished, preventing resurgence for 18 months, the time frame that has frequently been cited for developing a vaccine. It also demonstrated that if people wear masks in public, it is twice as effective at reducing the R number than if face coverings are only worn after symptoms appear.

The masks don’t have to be top-of-the-line surgical or respirator masks. Homemade coverings that catch only 50 percent of exhaled droplets would provide a “population-level benefit,” they concluded.

As has been well-publicized, wearing a mask primarily protects others from yourself, rather than the other way around. It is not a sign that you consider others a danger.

Science Focus quoted the study’s lead author, Dr Richard Stutt, as saying, “Our analyses support the immediate and universal adoption of face masks by the public.”

Stutt is part of a team that usually models the spread of crop diseases at Cambridge’s department of plant sciences.

Alameda County and San Francisco city health officials require residents to wear face coverings any time they leave home and get within 30 feet of anyone not living in their household.

In San Francisco, Contra Costa, Marin, Napa, Santa Clara, San Mateo and Sonoma counties (plus the cities of Pleasant Hill and Fremont) people must use basic nonmedical, cloth masks, including scarves and bandannas, to cover their noses and mouths when they leave home to go to essential places like the supermarket, drugstore or doctor.

MORE CORONAVIRUS COVERAGE:

Sign up for ‘The Daily’ newsletter for the latest on coronavirus here.

    • Disneyland announces reopening dates for parks, hotels
    • Bay Area coronavirus case increases indicate a surge. Other metrics paint a more nuanced picture
    • Coronavirus updates: Fauci says WHO ‘was not correct’ stating asymptomatic spread is rare
    • California health official resigns after receiving threats
    • California tech CEO charged in coronavirus test fraud case

Mike Moffitt is an SFGATE Digital Reporter. Email: [email protected]. Twitter: @Mike_at_SFGate

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How Much Weight Men Should Be Able to Deadlift

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How Much Weight Men Should Be Able to Deadlift

4 min read IT'S ONLY NATURAL to compare yourself to the guy lifting next to you. It doesn’t matter if he’s bigger and stronger or smaller and scrawnier—everyone wants a benchmark against which to gauge their strength and skill. If that bench (or squat rack, or power platform, or rubberized flooring) happens to be just

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