South Africa halts AstraZeneca/Oxford vaccine use after UK study; Pfizer touts 'Project Light Speed'; 27M US cases. Latest COVID-19 updates.

South Africa halts AstraZeneca/Oxford vaccine use after UK study; Pfizer touts 'Project Light Speed'; 27M US cases. Latest COVID-19 updates.

USATODAY.com

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Chicago schools are set to reopen this week after a tentative agreement with the teachers' union over COVID-19 safety protocols. Latest virus news.
 

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