How to limit the heightened risk of infection during travel, according to an expert

For Americans traveling after Christmas and New Year's, getting their Covid-19 vaccinations or booster doses as soon as possible is critical to safely avoid serious illness, one health expert told CNN Saturday.

How to limit the heightened risk of infection during travel, according to an expert
For Americans traveling after Christmas and New Year's, getting their Covid-19 vaccinations or booster doses as soon as possible is critical to safely avoid serious illness, one health expert told CNN Saturday.