The spread of the variant B.1.617.2 outside of India is leading to fresh concern about vaccine efficacy and lifting restrictions
Source link : https://www.washingtonpost.com/world/2021/05/20/india-variant-spread/?utm_source=rss&utm_medium=referral&utm_campaign=wp_world
Author : By Adam Taylor
Publish date : 2021-05-20 16:00:04
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