Measles spreads rapidly in communities that are not fully vaccinated and may pose a risk to international travelers in places not included in the THN. CDC recommends all travelers get fully vaccinated against measles before traveling to any international destination.

CDC Travelers’ Health Branch provides updated travel information, notices, and vaccine requirements to inform international travelers and provide guidance to the clinicians who serve them.

CDC uses Travel Health Notices (THNs) to inform travelers about global health risks during outbreaks, special events or gatherings, and natural disasters, and to provide advice about protective actions travelers can take to prevent infection or adverse health effects.

May 15, 2024 · Search for a place by name or zoom and click on the map to see CDC's travel recommendations for Zika. Follow the links in the pop-up message to learn more.

Some international destinations have circulating poliovirus (listed below and shown in map). Before any international travel, make sure you are up to date on your polio vaccines.

CDC Travel Health Advisory (HAN): Oropouche Virus Activity and Associated Risk to Travelers. PAHO/WHO | Pan American Health Organization Epidemiological Alerts; Oropouche Virus and Possible Sexual Transmission

Although Brazil does not require proof of vaccination against yellow fever for entry into the country, CDC recommends yellow fever vaccination for all travelers aged ≥9 months going to areas with risk for transmission.

Monitor travel advisories and alerts and read travel tips from the US Department of State. Enroll in the Smart Traveler Enrollment Program (STEP). Leave a copy of your itinerary, contact information, credit cards, and passport with someone at home. Pack as light as possible, and leave at home any item you could not replace. While at your ...

Monitor travel advisories and alerts and read travel tips from the US Department of State. Enroll in the Smart Traveler Enrollment Program (STEP). Leave a copy of your itinerary, contact information, credit cards, and passport with someone at home. Pack as light as possible, and leave at home any item you could not replace. While at your ...

This Travel Health Notice (THN) is no longer active. For a full list of active THNs, please see Travel Health Notices | Travelers' Health | CDC.