Pfizer data suggests 3rd dose of vaccine 'strongly' boosts protection against delta variant

Source Fox Chicago
Original Load Date July 28, 2021, 11:01 a.m.
Last Updated July 28, 2021, 11:01 a.m.
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#### CDC issues new mask guidelines for vaccinated people | LiveNOW From FOX The US Centers for Disease Control and Prevention updated its mask guidance on Tuesday to recommend that people who are fully vaccinated against COVID-19 resume wearing masks indoors in parts of the country with high leve...