CNN's Dr. Sanjay Gupta discusses the CDC's updated guidance that recommends fully vaccinated people wear masks indoors in areas with "substantial" and "high" transmission of Covid-19.
원문출처 : https://www.cnn.com/videos/health/2021/07/27/gupta-cdc-guidance-masks-sot-vpx-lead.cnn
원문출처 : https://www.cnn.com/videos/health/2021/07/27/gupta-cdc-guidance-masks-sot-vpx-lead.cnn