Masks are back, and, this time, they're not just for COVID-19.A tripledemic of the coronavirus, influenza and respiratory syncytial virus, known as RSV, sweeping through the United States has prompted several cities and counties, including New York City and Los Angeles County, to encourage people to wear a mask in indoor public spaces once again.
#people #back #united-states #responsible #researchers #vaccination #white-house #social-distancing #disease-control
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