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Public Health

Vetted resources and information on current public health events.

What are Travel Health Notices

Travel Health Notices inform travelers and clinicians about current health issues that impact travelers’ health, like disease outbreaks, special events or gatherings, and natural disasters, in destinations around the world.

Extreme Level 4 (Red)
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.
Warning Level 3 (Orange)
Reconsider nonessential travel to this destination. The outbreak or event poses risk to travelers because limited precautions are available.
Alert Level 2 (Yellow)
Practice enhanced precautions for this destination. The Travel Health Notice describes additional precautions or defines a specific population at risk.
Watch Level 1 (Green)
Practice usual precautions for this destination, as described in the Travel Health Notice and/or on the destination page.

Current Travel Health Notices

Currently there are no Travel Health Notices at this level.

Currently there are no Travel Health Notices at this level.

Updated  Global Polio January 15, 2025

Some international destinations have circulating poliovirus. Before any international travel, make sure you are up to date on your polio vaccines.

 
Clade I Mpox in Central and Eastern Africa December 30, 2024

There is an outbreak of clade I mpox in Central and Eastern Africa. 

 
Chikungunya in India December 19, 2024

There is an outbreak of chikungunya in the states of Maharashtra and Telangana, India.

 
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.

 

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.

 
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.

 
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.

 
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.

 
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.

New   Possible Marburg in Tanzania January 15, 2025

Tanzania is experiencing a possible Marburg virus disease (Marburg) outbreak in the Kagera region in northwest Tanzania.

 

Updated   Oropouche in the AmericasJanuary 14, 2025

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.

 

East African Sleeping Sickness in Zambia and Zimbabwe December 18, 2024

There have been several cases of East African human trypanosomiasis among travelers returning from safari areas in Zambia and Zimbabwe.

 

Global Measles December 16, 2024

Many international destinations are reporting increased numbers of cases of measles.

 

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.

 

Salmonella Newport in Mexico May 30, 2024

Some travelers who have spent time in Mexico have been infected with multidrug-resistant (MDR) Salmonella Newport.

 

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.

 

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.

CDC Travel Notices

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CDC International Outbreaks

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