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url = https://www.npr.org/tags/804916759/covid-19
covid-19 : npr
Delta updates its statement calling COVID a 'seasonal virus' after a backlash
The airline changed its announcement about the end of the federal mask mandate after a firestorm of criticism from public health experts who called it inaccurate and misleading.
April 7, 2022 • My 6-year-old has been exposed to SARS-CoV-2 at least four times and never tested positive. Many people fall into that category. Researchers have theories about why they've been able to ward it off.