For a trip to the Caribbean in 2026, health authorities typically recommend that all travelers be up-to-date on routine vaccinations, including MMR (measles, mumps, rubella), Tdap (tetanus, diphtheria, pertussis), and chickenpox. For most islands, Hepatitis A and Typhoid are strongly recommended because they can be contracted through contaminated food or water, especially if you plan to eat at local markets or explore rural areas. Hepatitis B is also suggested if you might have medical procedures or new sexual partners during your stay. A Yellow Fever vaccination certificate is generally not required for those traveling directly from the US or Europe, but it is mandatory if you are arriving from a country with a high risk of transmission (such as parts of South America or Africa). In 2026, the Dengue fever vaccine (Qdenga) is also becoming more widely recommended for those staying for extended periods, as mosquitoes are prevalent. Always consult a travel clinic at least 4–6 weeks before departure, as specific requirements can vary between islands like Haiti, the Dominican Republic, and the smaller Antilles.