Omicron BQ, XBB subvariants are a serious threat to boosters and knock out antibody treatments, study finds

Two years later, did Covid vaccines live up to their promise? Despite the success of mRNA vaccines, researchers think a new generation of Covid vaccines could provide broader, longer-term protection in the future. NBC News

...In particular, researchers think sprays or drops given through the nose or mouth could do a better job of stopping transmission. They also hope that vaccines that target multiple parts of the virus or several variants at once could reduce the need for continuous boosters.

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Dr. Sanjay Gupta: After two years of Covid-19 vaccines, here's why they're still vital | CNN In the United States, approximately 658 million Covid-19 vaccine doses have been administered since they were first distributed exactly two years ago Wednesday. Dr. Sanjay Gupta CNN

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China faces 'tough' zero-COVID exit, WHO says China is facing a "very tough" time as it dismantles its rigid "zero-COVID" policy and allows people to live with the virus, posing challenges preparing hospitals and ensuring people are sufficiently protected, the World Health Organization said. Reuters Reuters

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