As Omicron variants of the coronavirus continue to evolve, one strain called XBB.1.5 appears to evade vaccines and past infections and has grown at a fast pace in the US, doubling its infection numbers every week for the last four weeks, according to the US Centers for Disease Control and Prevention (CDC).
https://global.chinadaily.com.cn/a/2...47eba79e6.html
https://global.chinadaily.com.cn/a/2...47eba79e6.html
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