Diseases, Conditions, Syndromes

New omicron variant stokes world fears, triggers travel bans

The discovery of a new coronavirus variant sent a chill through much of the world Friday as nations raced to halt air travel, markets fell sharply and scientists held emergency meetings to weigh the exact risks, which were ...

Vaccination

US to require vaccines for all border crossers in January

President Joe Biden will require essential, nonresident travelers crossing U.S. land borders, such as truck drivers, government and emergency response officials, to be fully vaccinated beginning on Jan. 22, the administration ...

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