U.S. health officials on Tuesday authorized a second COVID-19 booster dose of the two most commonly used COVID-19 vaccines for people age 50 and older, citing data showing waning immunity and the...
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[HASH=63786]#omicron[/HASH] [HASH=13428]#pfizer[/HASH] [HASH=13846]#healthofficials[/HASH]
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