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Springfield and Green County Health Department Acting Director Katie Smith hands off a coronavirus test on July, 9, 2021. The delta variant of the coronavirus is now the dominant strain in the United States. (Christopher H. Smith for The Washington Post) (Christopher Smith/FOR THE WASHINGTON POST)
Two Post science reporters take your questions about the highly contagious coronavirus variant that is now the dominant strain in the U.S.
Nearly 4 million infections were reported worldwide over the past week, up from 3.5 million the previous week, according to the World Health Organization.
The Washington Post is providing our daily live updates, comprehensive guide to the pandemic and our Coronavirus Updates newsletter for free, so that all readers have access to this important information about the coronavirus pandemic.
The Russian capital had required gloves in public places. Masks will still be required.
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