CDC afirma que norte-americanos totalmente vacinados podem ficar sem máscaras tanto em ambientes abertos como fechados.

Diretriz do CDC: Interim Public Health Recommendations for Fully Vaccinated People – Centers for Disease Control and Prevention

Comentários: CDC backtracks, saying fully vaccinated people can go maskless indoors – STAT E Fully Vaccinated People Can Stop Wearing Masks Indoors And Outdoors, CDC Says – NPR E CDC: No masks needed for COVID-vaccinated Americans – CIDRAP