Amid a shortage of medical-grade masks, federal guidelines now recommend everyone wear face coverings out in public. Here's ...
With flu season arriving early and NHS leaders encouraging people with symptoms to wear masks in public, a question arises: do masks actually work against the flu? The short answer is that the ...
Paul Hunter consults for the World Health Organization. He receives funding from National Institute for Health Research and has received funding from the World Health Organization and the European ...
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