As chilly climate approaches, health experts are warning of sleek Covid-19 Omicron subvariants that are in a diagram to dodge immune defenses, posing a possibility to each and each vaccinated and beforehand contaminated of us. NBC Files medical fellow Dr. Akshay Syal breaks down whether or no longer the sleek Omicron subvariants would possibly perchance well additionally space off a spike in cases and whether or no longer Covid-19 vaccine booster shots can light provide protection to of us in opposition to the virus.
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