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

There is an outbreak of Oropouche in Espírito Santo, Brazil. Oropouche is spread primarily through the bites of infected midges (small flies) and mosquitoes.Oropouche in Espírito Santo, Brazil770
New Oropouche in Espírito Santo, Brazil December 11, 2024 There is an outbreak of Oropouche in Espírito Santo, Brazil. Oropouche is spread primarily through the bites of infected midges (small flies) and mosquitoes. Read More >>
The Republic of Rwanda has been experiencing an outbreak of Marburg virus disease (Marburg). Marburg in Rwanda768
Marburg in Rwanda November 22, 2024 The Republic of Rwanda has been experiencing an outbreak of Marburg virus disease (Marburg). Read More >>
CDC has identified a higher-than-expected number of chikungunya cases among U.S. travelers returning from the state of Telangana, India.Chikungunya in the state of Telangana, India769
Chikungunya in the state of Telangana, India November 08, 2024 CDC has identified a higher-than-expected number of chikungunya cases among U.S. travelers returning from the state of Telangana, India. Read More >>
There is an outbreak of clade I mpox in Central and Eastern Africa. Country List : Burundi, Central African Republic, Democratic Republic of the Congo, Republic of the Congo , Rwanda, UgandaClade I Mpox in Central and Eastern Africa766
Clade I Mpox in Central and Eastern Africa September 23, 2024 There is an outbreak of clade I mpox in Central and Eastern Africa.
Destination List: Burundi, Central African Republic, Democratic Republic of the Congo, Republic of the Congo, Rwanda, Uganda Read More >>
There is an outbreak of Zika in the state of Maharashtra, India. All travelers to Maharashtra should take steps to prevent mosquito bites and sexual transmission of Zika virus during and after travel. Zika in the state of Maharashtra, India765
Zika in the state of Maharashtra, India August 22, 2024 There is an outbreak of Zika in the state of Maharashtra, India. All travelers to Maharashtra should take steps to prevent mosquito bites and sexual transmission of Zika virus during and after travel. Read More >>
Some international destinations have circulating poliovirus. Before any international travel, make sure you are up to date on your polio vaccines. Country List : Afghanistan, Algeria, Benin, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Madagascar, Mozambique, Niger, Nigeria, Pakistan, Somalia, Yemen, Indonesia, Sudan, Mali, Botswana, Zambia, Republic of the Congo , Burundi, Burkina Faso, Kenya, Tanzania, including Zanzibar, Guinea, Mauritania, Egypt, Zimbabwe, Angola, Liberia, Senegal, Sierra Leone, Ethiopia, The Gambia, Republic of South Sudan, UgandaGlobal Polio734
Global Polio August 20, 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, Ethiopia, Guinea, Indonesia, Kenya, Liberia, Madagascar, Mali, Mauritania, Mozambique, Niger, Nigeria, Pakistan, Republic of South Sudan, Republic of the Congo, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, including Zanzibar, The Gambia, Uganda, Yemen, Zambia, Zimbabwe Read More >>
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.Diphtheria in Guinea751
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 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.Yellow Fever in Nigeria392
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 >>
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.Diphtheria in Niger752
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 >>
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.Diphtheria in Nigeria 740
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

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. Country List : Burkina Faso, Colombia, Ecuador, including the Galápagos Islands, Guatemala, Honduras, Mali, Mexico, Panama, Sudan, Afghanistan, Cape Verde, Cuba, El Salvador, French Polynesia, including the island groups of Society Islands (Tahiti, Moorea, and Bora-Bora), Marquesas Islands (Hiva Oa and Ua Huka), and Austral Islands (Tubuai and Rurutu), Iran, Grenada, India, Trinidad and Tobago, Philippines, Ethiopia, Saint Lucia, Pakistan, Central African Republic, GuadeloupeGlobal Dengue762
Updated Global Dengue December 16, 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, and Austral Islands (Tubuai and Rurutu), and Bora-Bora), Burkina Faso, Cape Verde, Central African Republic, Colombia, Cuba, Ecuador, including the Galápagos Islands, El Salvador, Ethiopia, French Polynesia, including the island groups of Society Islands (Tahiti, Grenada, Guadeloupe, Guatemala, Honduras, India, Iran, Mali, Marquesas Islands (Hiva Oa and Ua Huka), Mexico, Moorea, Pakistan, Panama, Philippines, Saint Lucia, Sudan, Trinidad and Tobago Read More >>
Many international destinations are reporting increased numbers of cases of measles. Country List : Afghanistan, Benin, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Ethiopia, Indonesia, Liberia, Nigeria, Pakistan, Republic of the Congo , Senegal, Somalia, Republic of South Sudan, Togo, Yemen, Kyrgyzstan, Armenia, Mauritania, Equatorial Guinea, Ghana, Kazakhstan, Burkina Faso, Türkiye (Turkey), United Arab Emirates, Burundi, Romania, Malaysia, Russia, Azerbaijan, Uzbekistan, Philippines, Austria, Belarus, Georgia, Bosnia and Herzegovina, San Marino, Guinea, Comoros, Kenya, Monaco, United Kingdom, including England, Scotland, Wales, and Northern Ireland, Belgium, Cyprus, Ireland, Montenegro, Moldova, Serbia, Niger, Thailand, Guinea-Bissau, Libya, Malawi, Mozambique, Saudi ArabiaGlobal Measles743
Updated Global Measles December 16, 2024 Many international destinations are reporting increased numbers of cases of measles.
Destination List: Afghanistan, and Northern Ireland, Armenia, Austria, Azerbaijan, Belarus, Belgium, Benin, Bosnia and Herzegovina, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Comoros, Côte d'Ivoire (Ivory Coast), Cyprus, Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Ethiopia, Georgia, Ghana, Guinea, Guinea-Bissau, Indonesia, Ireland, Kazakhstan, Kenya, Kyrgyzstan, Liberia, Libya, Malawi, Malaysia, Mauritania, Moldova, Monaco, Montenegro, Mozambique, Niger, Nigeria, Pakistan, Philippines, Republic of South Sudan, Republic of the Congo, Romania, Russia, San Marino, Saudi Arabia, Scotland, Senegal, Serbia, Somalia, Thailand, Togo, Türkiye (Turkey), United Arab Emirates, United Kingdom, including England, Uzbekistan, Wales, Yemen Read More >>
Areas in several countries are reporting a low number of cases of Oropouche. Oropouche is spread primarily through the bites of infected midges (small flies) and mosquitoes. Country List : Bolivia, Brazil, Colombia, Dominican Republic, Peru, Guyana, Ecuador, including the Galápagos Islands, CubaOropouche in the Americas767
Updated Oropouche in the Americas December 11, 2024 Areas in several countries are reporting a low number of cases of Oropouche. Oropouche is spread primarily through the bites of infected midges (small flies) and mosquitoes.
Destination List: Bolivia, Brazil, Colombia, Cuba, Dominican Republic, Ecuador, including the Galápagos Islands, Guyana, Peru Read More >>
Some travelers who have spent time in Mexico have been infected with multidrug-resistant (MDR) Salmonella Newport.Salmonella Newport in Mexico732
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 >>
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.Rocky Mountain Spotted Fever in Mexico 756
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 >>
An outbreak of extensively drug-resistant (XDR) typhoid fever in Pakistan is ongoing. Extensively drug-resistant infections do not respond to most antibiotics.XDR Typhoid Fever in Pakistan397
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

Level 4 – Avoid All Travel

Avoid travel to this destination unless traveling for humanitarian aid or emergency response; there is an extreme health risk for travelers and no available precautions.

Level 3 – Reconsider Nonessential Travel

Reconsider nonessential travel to this destination. The outbreak or event poses risk to travelers because limited precautions are available.

Level 2 – Practice Enhanced Precautions

Practice enhanced precautions for this destination. The Travel Health Notice describes additional precautions or defines a specific population at risk.

Level 1 – Practice Usual Precautions

Practice usual precautions for this destination, as described in the Travel Health Notice and/or on the destination page.

Visit U.S. Department of State's website for the latest Travel Advisories.