from BBC News - World https://ift.tt/3Gul5eJ
Wednesday, December 8, 2021
Covid: Pfizer says booster shot promising against Omicron
The company says a third dose of its vaccine could improve protection against the new variant.
from BBC News - World https://ift.tt/3Gul5eJ
from BBC News - World https://ift.tt/3Gul5eJ
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