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UP NEXT
Dr. Ashish Jha on rising COVID-19 cases, masks, J&J vaccine
04:52
How soon could the FDA approve Moderna shot for kids under 6?
02:29
Full Dr. Jha: 'Vaccines are holding up really well against … all of the omicron variants'
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01:02
The long-term effects of Covid
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Scientists working on universal vaccine to fight all future Covid variants
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