By BY LYNSEY CHUTEL, RICHARD PÉREZ-PEÑA AND JOHN YOON from NYT World https://ift.tt/3rzCFd2
A preliminary study in South Africa shows a sudden, sharp rise in re-infections as Omicron spreads.
![A preliminary study in South Africa shows a sudden, sharp rise in re-infections as Omicron spreads.]()
Reviewed by Anonymous
on
December 03, 2021
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