Travel Health Notices
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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.
A THN can be posted for: 1) a disease outbreak (higher number of expected cases) in a country or region, 2) sporadic cases of a disease in an unusual or new geographic location, 3) natural and human-made disasters with severe environmental health risks, or infrastructure damage that would limit healthcare services availability and 4) mass gathering events that can lead to disease outbreaks. See types of travel notices.
Level 4 - Avoid All Travel
- Currently there are no Travel Health Notices at this level.
Level 3 - Reconsider Nonessential Travel
- Currently there are no Travel Health Notices at this level.
Level 2 - Practice Enhanced Precautions
- Mpox in the Democratic Republic of the Congo June 10, 2024 There is an outbreak of mpox in 25 out of 26 provinces, including urban areas, in the DRC. Read More >>
- Chikungunya in Maldives May 28, 2024 There is an outbreak of chikungunya in the Malé and Hulhumalé regions of Maldives. Mosquitoes spread the virus that causes chikungunya. Read More >>
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Global Polio
May 23, 2024
Some international destinations have circulating poliovirus. Before any international travel, make sure you are up to date on your polio vaccines.
Destination List: Afghanistan, Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Egypt, Guinea, Indonesia, Kenya, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Niger, Nigeria, Pakistan, Republic of the Congo, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, including Zanzibar, Yemen, Zambia, Zimbabwe Read More >> - Diphtheria in Guinea April 23, 2024 There are confirmed and suspect cases of diphtheria in several regions in Guinea. Vaccination against diphtheria is essential to protect against disease. If you are traveling to an affected area, you should be up to date with your diphtheria vaccines. Read More >>
- Yellow Fever in Nigeria March 28, 2024 Yellow fever cases remain elevated in Nigeria, after an outbreak was first reported in November 2020. Travelers to Nigeria should take steps to prevent yellow fever by getting vaccinated at least 10 days before travel and taking steps to prevent mosquito bites. Read More >>
- Diphtheria in Niger February 25, 2024 There is an outbreak of diphtheria in Niger. If you are traveling to an affected area, you should be up to date with your diphtheria vaccines. Read More >>
- Diphtheria in Nigeria February 16, 2024 There is an outbreak of diphtheria in several states in Nigeria. Vaccination against diphtheria is essential to protect against disease. If you are traveling to an affected area, you should be up to date with your diphtheria vaccines. Read More >>
Level 1 - Practice Usual Precautions
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Updated
Global Measles
July 24, 2024
Many international destinations are reporting increased numbers of cases of measles.
Destination List: Afghanistan, Angola, Armenia, Austria, Azerbaijan, Belarus, Benin, Bosnia and Herzegovina, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Ethiopia, Gabon, Georgia, Ghana, India, Indonesia, Kazakhstan, Kyrgyzstan, Lebanon, Liberia, Malaysia, Mali, Mauritania, Niger, Nigeria, Pakistan, Philippines, Qatar, Republic of South Sudan, Republic of the Congo, Romania, Russia, San Marino, Senegal, Somalia, Sri Lanka, Sudan, Syria, Togo, Turkey, United Arab Emirates, Uzbekistan, Yemen, Zambia Read More >> -
Global Dengue
July 23, 2024
Dengue is a year-round risk in many parts of the world, with outbreaks commonly occurring every 2–5 years. Travelers to risk areas should prevent mosquito bites.
Destination List: Afghanistan, Brazil, Burkina Faso, Cape Verde, Colombia, Costa Rica, Cuba, Ecuador, including the Galápagos Islands, Ethiopia, French Guiana (France), Ghana, Guadeloupe, Guatemala, Guyana, Honduras, Laos, Mali, Mauritius, Mexico, Panama, Paraguay, Samoa, Singapore, Sri Lanka, Sudan, Uruguay Read More >> -
Oropouche Fever in the Americas
June 27, 2024
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, Peru, Colombia, and Cuba. Travelers to affected areas should take steps to avoid bug bites.
Destination List: Bolivia, Brazil, Colombia, Cuba, Peru Read More >> - Salmonella Newport in Mexico May 30, 2024 Some travelers who have spent time in Mexico have been infected with multidrug-resistant (MDR) Salmonella Newport. Read More >>
- Rocky Mountain Spotted Fever in Mexico March 12, 2024 There have been reports of Rocky Mountain spotted fever (RMSF) in people traveling to the United States from Tecate, in the state of Baja California, Mexico. Read More >>
- XDR Typhoid Fever in Pakistan May 30, 2023 An outbreak of extensively drug-resistant (XDR) typhoid fever in Pakistan is ongoing. Extensively drug-resistant infections do not respond to most antibiotics. Read More >>
Types of Notices
Visit U.S. Department of State's website for the latest Travel Advisories.