CNN The Lead With Jake Tapper December 22, 2021 21:03:00
Deterred. with the tsa screening around 2 million or more people a day for the past six days. the cdc director reminding travelers -- >> how safe your holiday is is really about how safe you are in the time leading up to the holiday. >> reporter: and as israel considers rolling out a fourth dose of pfizer's covid-19 vaccine, for medical workers, the immunocompromised, and people over 60, u.s. health officials say they will follow the science. >> right now we feel confident that if you have a booster, you have a high level of protection against overall infection, particularly against hospitaliz...