The head of the World Health Organization said Wednesday that he's worried about the omicron and delta variants of COVID-19 combining to produce a “tsunami” of cases, but said he's still hopeful that the world will put the worst of the pandemic behind it in 2022.
Two years after the coronavirus first emerged, top officials with the U.N. health agency cautioned that it's still too early to be reassured by initial data suggesting that omicron, the latest variant, leads to milder disease. First
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