Stricter travel rules begin as US cases climb; J&J vaccine works well as mix-and-match booster, study says: COVID-19 updates

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International travelers arriving to the U.S. face stricter rules. Study says Johnson & Johnson vaccine serves as an effective booster. Live updates.

     

from USATODAY - News Top Stories Stricter travel rules begin as US cases climb; J&J vaccine works well as mix-and-match booster, study says: COVID-19 updates
Celina Tebor, USA TODAY

International travelers arriving to the U.S. face stricter rules. Study says Johnson & Johnson vaccine serves as an effective booster. Live updates.

     

December 06, 2021 at 09:00AM
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