I want to buy wholesale antibacterial face masks supplier (reusable) exporter to Portuguese? We talked to UC San Francisco epidemiologist George Rutherford, MD, and infectious disease specialist Peter Chin-Hong, MD, about the CDC’s reversal on mask-wearing, the current science on how masks work, and what to consider when choosing a mask. Why did the CDC change its guidance on wearing masks? The original CDC guidance partly was based on what was thought to be low disease prevalence earlier in the pandemic, said Chin-Hong. “So, of course, you’re preaching that the juice isn’t really worth the squeeze to have the whole population wear masks in the beginning – but that was really a reflection of not having enough testing, anyway,” he said. “We were getting a false sense of security.”
A face mask can make a public statement. You’ve undoubtedly observed people marching in the streets with masks that match their cause. A mask is more visible even than a t-shirt for that purpose, and it is infinitely malleable to the occasion. At another level, though, wearing a facemask shows that you have the good of others in mind. As public health experts so often state, even if you’re not concerned about contracting the virus yourself, the wearing of a facemask shows that you’re concerned about the health of the people important to you in your life.
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“If that chain is cut anywhere, then the virus is no longer able to propagate or to be transmitted,” Waldman says. “So whether you intervene on the side of the transmitter or the side of the receiver of viral transmission, if you can block the passage of the virus on either end of that chain, then everyone benefits from that.” A few studies highlight the power of widespread community use of face coverings. A report published in Health Affairs, for example, found that states with face mask mandates had a greater decline in daily COVID-19 growth rates compared with states that did not issue mandates. The authors estimate that these mask policies may have prevented as many as 450,000 coronavirus cases in the U.S.
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