| Photo by Ross D. Franklin / AP
| Photo by Ross D. Franklin / AP
A healthcare worker directs vehicles to a Covid-19 test area at a drive-thru testing center on Dec. 8, 2020, in Phoenix.
Arizona currently has the highest per-capita rate of new Covid-19 infections, with 785 cases per 100,000 people over the past seven days, followed closely by California and Rhode Island.
 
Read the full story at  NBC News | Science News.

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