World W.H.O. Officials Urge the Vaccinated to Mask Over Variant Concerns June 29, 2021June 29, 2021Roni Caryn Rabin, Abdi Latif Dahir and Aina J. KhanComments Off on W.H.O. Officials Urge the Vaccinated to Mask Over Variant Concerns Los Angeles County strongly recommended on Monday that everyone wear masks indoors as a precaution against the Delta variant.
