While the need for mask wearing never fully dissipated during the pandemic, guidance from the US Centers for Disease Control and Prevention in May that removed restrictions for vaccinated individuals was a welcome harbinger of a possible return to normalcy.
원문출처 : https://www.cnn.com/2021/07/24/health/us-coronavirus-saturday/index.html
원문출처 : https://www.cnn.com/2021/07/24/health/us-coronavirus-saturday/index.html