W.H.O. officials, concerned about the Delta variant, urge vaccinated people to keep wearing masks.

W.H.O. officials, concerned about the Delta variant, urge vaccinated people to keep wearing masks.
By Roni Caryn Rabin, Abdi Latif Dahir and Aina J. Khan from NYT World https://ift.tt/3dqwpwg
Vaccination and Immunization, Coronavirus (2019-nCoV), Masks, World Health Organization, Los Angeles (Calif)