Cruise lines have detected infections among vaccinated crew members and passengers, and the CDC began advising travelers who are at a higher risk for severe COVID-19 illness to avoid cruises, recommending that passengers show both a recent negative COVID test and proof they've been immunized.
The CDC changed its cruise guidelines for high-risk groups, and some cruise lines and cruise destinations are also revising their own guidelines.
Starting Sept. 3, the Bahamas is requiring all passengers 12 and older to be vaccinated against COVID-19 as a condition for ships to dock, which prompted Disney Cruise Line, Royal Caribbean and Carnival to adopt the same requirement.
The companies will ask for a government vaccination card or a record from a health care provider.