Do you have to have the vaccine to cruise is a widely discussed question that can be broken down into its parts of speech: "have" (verb), "to" (preposition), "have" (verb), "the" (article), "vaccine" (noun), "to" (preposition), and "cruise" (verb). Cruise ship travel requires passengers to be vaccinated against COVID-19 as a preventive measure.
The COVID-19 vaccine has proven effective in reducing the risk of severe illness, hospitalization, and death. Moreover, its development marked a significant milestone in combating the global pandemic.