The document calls for even stricter masking requirements than the CDC issued earlier this week.
This is very real. We're about to see what happens when a vaccine protects recipients from diseases, but in the face of a mutant form of #SARSCoV2 fails to block infection and viral shedding. So vaccinated folks can get Delta, and can pass it on to others.https://t.co/BjhFrbBoUg
— Laurie Garrett (@Laurie_Garrett) July 30, 2021