Confirmed COVID-19 cases are currently nowhere near where they were during the last two winters in the U.S., but they are expected to rise. The current numbers reported are also believed to be lower than they actually are since more people are testing at home.
A pair of new studies describe infection- and vaccine-conferred immunity against the SARS-CoV-2 Omicron variant, with one showing that vaccinated people have good protection against BA.5 subvariant reinfection for at least 8 months after infection, and the other finding that the vaccine is 46% and 70% effective against infection and hospitalization, respectively, in children.
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