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
- 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 >>
- Chikungunya in Timor-Leste April 05, 2024 There is an outbreak of chikungunya in Timor-Leste. 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 >>
- Mpox in the Democratic Republic of the Congo February 16, 2024 There is an outbreak of mpox in 22 out of 26 provinces, including urban areas, in the DRC. Read More >>
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Global Polio
January 05, 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, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Egypt, Guinea, Indonesia, Israel, including the West Bank and Gaza, Kenya, Madagascar, Malawi, Mali, Mauritania, Mozambique, Niger, Nigeria, Pakistan, Republic of the Congo, Somalia, Sudan, Tanzania, including Zanzibar, Yemen, Zambia, Zimbabwe Read More >>
Level 1 - Practice Usual Precautions
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Updated
Oropouche Fever in South America
April 24, 2024
There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, and Peru. Travelers to affected areas should take steps to avoid bug bites.
Destination List: Bolivia, Brazil, Peru Read More >> -
Dengue in the Americas
April 18, 2024
Dengue is a risk in many parts of Central and South America, Mexico, and the Caribbean. Some countries are reporting increased numbers of cases of the disease. Travelers to the Americas can protect themselves by preventing mosquito bites.
Destination List: Argentina, Brazil, Colombia, Costa Rica, Ecuador, including the Galápagos Islands, French Guiana (France), Guadeloupe, Guatemala, Martinique (France), Mexico, Nicaragua, Panama, Paraguay, Peru, Turks and Caicos Islands (U.K.), Uruguay Read More >> -
Dengue in Africa and the Middle East
April 18, 2024
Dengue is a risk in many parts of Africa and the Middle East. Some countries are reporting increased numbers of cases of the disease. Travelers to Africa and the Middle East can protect themselves by preventing mosquito bites.
Destination List: Burkina Faso, Cape Verde, Ethiopia, Mali, Mauritius, Sudan Read More >> -
Dengue in Asia and the Pacific Islands
April 18, 2024
Dengue is a risk in many parts of Asia and the Pacific Islands. Some countries are reporting increased numbers of cases of the disease. Travelers to Asia and the Pacific Islands can protect themselves by preventing mosquito bites.
Destination List: Cambodia, Indonesia, Laos, Malaysia, Singapore, Sri Lanka Read More >> -
Global Measles
March 22, 2024
Many international destinations are reporting increased numbers of cases of measles.
Destination List: Afghanistan, Angola, Armenia, Azerbaijan, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Ethiopia, Gabon, Ghana, India, Indonesia, Kazakhstan, Kyrgyzstan, Lebanon, Liberia, Libya, Malaysia, Mauritania, Nepal, Niger, Nigeria, Pakistan, Qatar, Republic of South Sudan, Republic of the Congo, Romania, Russia, Senegal, Somalia, Sri Lanka, Sudan, Syria, Tajikistan, Togo, Turkey, United Arab Emirates, Uzbekistan, Yemen, Zambia Read More >> -
Western Equine Encephalitis Virus in South America
March 14, 2024
There are reports of Western equine encephalitis virus (WEEV) infections in horses, humans or both, in parts of Argentina and Uruguay.
Destination List: Argentina, Uruguay 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 June 16, 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 >>
- Salmonella Newport in Mexico March 29, 2023 Some travelers who have spent time in Mexico have been infected with multidrug-resistant (MDR) Salmonella Newport. Read More >>
Types of Notices
Visit U.S. Department of State's website for the latest Travel Advisories.