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CDC officially acknowledges COVID-19 can spread by airborne transmission 11Alive 1:34 3 years ago 632 Скачать Далее
CDC backtracks on COVID-19 guidelines again: Airborne transmission possible but not how virus spread WWLTV 4:11 3 years ago 2 445 Скачать Далее
U.S. CDC acknowledges airborne transmission of COVID-19 Arirang News 2:14 3 years ago 810 Скачать Далее
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