The United States is about to make it much easier for vaccinated international travelers to visit.   
             
        The White House announced Friday that a new air travel system will take effect Nov. 8, allowing entry for fully vaccinated foreign tourists. The system is set to launch more than 20 months after the U.S. began imposing travel restrictions to prevent the spread of COVID-19.   
             
        The move by the White House will essentially have the U.S. drop its travel ban on dozens of countries while also making entry more challenging for the unvaccinated. The new system will allow entry for foreign nationals only with vaccinations approved by the World Health Organization and would add testing requirements for unvaccinated Americans.   
             
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        The FDA has authorized three COVID-19 vaccines for emergency use during the pandemic: Moderna, Johnson & Johnson and Pfizer-BioNTech, the last of which has received the FDA's full stamp of approval.   
             
        Vaccines with WHO approval include:   
                 
        The CDC confirmed Friday that it would accept a mix-and-match approach to vaccinations. Travelers who have any combination of FDA- or WHO-approved vaccines will be considered fully vaccinated.