U.K. Urges Booster for All Adults, Second Shot for Ages 12-15.

The U.K. is poised to offer Covid booster shots to all adults and second shots to more children amid worries that the new omicron variant could spread even more easily and fuel another surge in cases. Governments are banning travelers from South Africa and nearby countries amid fears omicron could evade vaccines and hinder efforts to reopen economies. [Extracted from the article]

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