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Updated Covid-19 vaccines boost protection, but may not beat original formula against BA.4 and BA.5, early studies suggest

Por: CNN Health October 26, 2022

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CNN  —  The updated Covid-19 booster shots appear to work about as well against the BA.4 and BA.5 Omicron subvariants as the original boosters they replaced, according to two new studies from research teams at Harvard and Columbia universities. The research suggests that our bodies have been well-trained to fight the original virus, which emerged from Wuhan, China, and that boosters mostly reinforce that response. Getting boosted this fall... + full article



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