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, Malawi, 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

Many international destinations are reporting increased numbers of cases of measles. Country List : Afghanistan, Angola, Benin, Cameroon, Central African Republic, Chad, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Djibouti, Ethiopia, Gabon, India, Indonesia, Liberia, Niger, Nigeria, Pakistan, Republic of the Congo , Senegal, Somalia, Republic of South Sudan, Sudan, Tajikistan, Togo, Yemen, Zambia, Nepal, Kyrgyzstan, Armenia, Mauritania, Lebanon, Equatorial Guinea, Syria, Ghana, Kazakhstan, Burkina Faso, Turkey, Qatar, United Arab Emirates, Libya, Burundi, Romania, Malaysia, Russia, Azerbaijan, Sri Lanka, Uzbekistan, Philippines, Timor-Leste (East Timor)

There are outbreaks of Oropouche fever in parts of Brazil, Bolivia, and Peru. Travelers to affected areas should take steps to avoid bug bites. Country List : Brazil, Bolivia, Peru

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.

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. Country List : Sri Lanka, Malaysia, Cambodia, Indonesia, Laos, Singapore

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. Country List : Sudan, Burkina Faso, Mali, Ethiopia, Cape Verde, Mauritius

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. Country List : Colombia, Guatemala, Nicaragua, Panama, Guadeloupe, Martinique (France), Costa Rica, French Guiana (France), Mexico, Turks and Caicos Islands (U.K.), Brazil, Paraguay, Argentina, Peru, Ecuador, including the Galápagos Islands, Uruguay

There is an outbreak of chikungunya in Timor-Leste.

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.

There are reports of Western equine encephalitis virus (WEEV) infections in horses, humans or both, in parts of Argentina and Uruguay. Country List : Argentina, Uruguay

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.

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.

There is an outbreak of mpox in 22 out of 26 provinces, including urban areas, in the DRC.

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.

There is an outbreak of Oropouche fever in the Amazonas and Acre states of Brazil. Travelers to these states of Brazil should take steps to avoid bug bites.