Worried by the Delta variant, W.H.O. officials urged vaccinated people to keep wearing masks.
Worried by the Delta variant, W.H.O. officials urged vaccinated people to keep wearing masks.
![](https://static01.nyt.com/images/2021/06/28/world/28virus-briefing-who1/merlin_189544248_d928ae50-6bc6-464c-b84a-74edae3e2a2e-mediumThreeByTwo440.jpg)
By BY RONI CARYN RABIN from NYT Health https://ift.tt/3x79Ep4
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June 29, 2021 at 03:36AM
![](https://static01.nyt.com/images/2021/06/28/world/28virus-briefing-who1/merlin_189544248_d928ae50-6bc6-464c-b84a-74edae3e2a2e-mediumThreeByTwo440.jpg)
By BY RONI CARYN RABIN from NYT Health https://ift.tt/3x79Ep4
via
via Blogger https://ift.tt/2T94IRS
June 29, 2021 at 03:36AM
Worried by the Delta variant, W.H.O. officials urged vaccinated people to keep wearing masks.
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