Two new studies paint encouraging picture of Covid-19 vaccine’s performance

The updated Covid-19 booster is holding up against the newest Omicron subvariants that are sweeping across the country, CDC scientists reported.

Two new studies published Wednesday report good news about the updated Covid-19 vaccine, with one suggesting it is more effective than the previous monovalent vaccine and the other showing that even though it targeted an earlier strain of the SARS-CoV-2 virus, its protection is holding up against current variants.

The findings suggest the updated vaccine, which targets both the original SARS-2 virus and the Omicron subvariants BA.4 and BA.5, is performing better than some critics of the decision to update the vaccine concluded, based on studies that only compared the levels of neutralizing antibodies each induced.

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