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• Mutations and new variants of the coronavirus are expected as it continues to spread, but experts say there's more reason for worry with this one

  A new and potentially more transmissible coronavirus variant first identified in South Africa ... read more...

• As the Omicron variant sparks concern, experts say it's time for unvaccinated Americans to get their shots

  As a new Omicron variant spurs global travel bans, experts said that concerns over its impact ... read more...

• World is put on high alert over Omicron variant

  Dutch health authorities are investigating whether 61 people traveling from South Africa who ... read more...