SAN FRANCISCO -- As fears rise over China's coronavirus outbreak spreading to the United States, more and more people are looking for ways to protect themselves. One of the most in-demand items are ...
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How effective are face masks against flu spread?
People on public transport are wearing face coverings again, while hospitals are asking staff and patients to mask up. Not just a blast of nostalgia for 2020, it’s due to a strain of flu rampaging ...
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