The Centers for Disease Control and Prevention published a new guide on the use of masks for people vaccinated before the advance of the delta variant in the United States. Dr. Anthony Fauci assured that "the virus changed and science evolved with a changing virus ".
Fauci, after the new mask guide: You have to get vaccinated to end the covid-19 | Video | CNN
2021-07-28T15:22:59.367Z
Centers for Disease Control and Prevention Released New Guidance on Using Masks for People Vaccinated Before Advancement | United States | CNN
