The CDC has changed its mask guidelines for people who are vaccinated against COVID-19. Keith Armitage, MD, Medical Director, UH Roe Green Center for Travel Medicine & Global Health explains what the data has shown regarding the effectiveness of the vaccines for both contracting the virus and spreading it. To learn more about COVID-19, vaccines and more: [ Ссылка ]
![](https://i.ytimg.com/vi/zofieCAFNWQ/maxresdefault.jpg)