Chikungunya in Chad

Warning - Level 3, Avoid Nonessential Travel
Alert - Level 2, Practice Enhanced Precautions
Watch - Level 1, Practice Usual Precautions

As the COVID-19 situation around the world changes, CDC is monitoring COVID-19 risk in each country and making travel recommendations. If you are considering international travel, see CDC’s COVID-19 Travel Recommendations by Destination.

Key points

  • There is an outbreak of chikungunya in Chad. 
  • Mosquitoes spread the virus that causes chikungunya.
  • You can protect yourself against chikungunya disease by preventing mosquito bites.
Chikungunya in Chad
Map: Chikungunya risk areas in Chad (see larger map)
What is Chikungunya?

Chikungunya disease is caused by the chikungunya virus and is spread to humans through mosquito bites.

Symptoms of chikungunya disease usually begin 3-7 days after a bite by an infected mosquito. Most people infected with chikungunya virus develop some symptoms. The most common symptoms are fever and joint pain. Other symptoms include headache, muscle pain, joint swelling, and rash.

Symptoms of chikungunya disease are similar to those of dengue and Zika, two other diseases spread by the same mosquitoes that transmit chikungunya.

Chikungunya disease does not often result in death, but symptoms can be severe and disabling. Most patients recover within a week, but some may have joint pain that lasts for months. Currently there is no vaccine to prevent Chikungunya.

What is the current situation?

Health officials in Chad have reported an outbreak of chikungunya. The Abéché health district (Ouaddaï Region) is reporting the most cases; the health districts of Biltine (Wadi Fira Region) and Abdi (Ouaddaï Region) are also reporting cases.

Who is at risk?

All travelers are at risk. More severe disease can occur in newborns who are infected around the time of birth, older adults (65 years or older), and people with medical conditions such as high blood pressure, diabetes, or heart disease.

What can travelers do to prevent chikungunya?

The most effective way to prevent infection from chikungunya virus is to prevent mosquito bites. The mosquitoes that spread chikungunya bite during the day and night. All travelers to Chad should take steps to prevent mosquito bites by using an EPA-registered insect repellant, wearing long-sleeved shirts and long pants when outdoors, and sleeping in an air-conditioned room with the windows closed, a room with window screens, or under an insecticide-treated bed net.

If you get sick during or after travel

If you have recently traveled, tell your healthcare provider when and where you traveled. Your healthcare provider may order blood tests to look for infection with chikungunya or other similar viruses like dengue and Zika. 

If you have chikungunya:

  • Treat the symptoms:
    • Get plenty of rest.
    • Drink fluids to prevent dehydration.
    • Take medication such as acetaminophen (Tylenol®) or paracetamol to reduce fever and pain.
    • Do not take aspirin and other non-steroidal anti-inflammatory drugs (NSAIDS) until dengue can be ruled out to reduce the risk of bleeding.
    • If you are taking medicine for another medical condition, talk to your healthcare provider before taking additional medication.  
  • Prevent mosquito bites for the first week of your illness.
    • During the first week of infection, chikungunya virus can be found in the blood and passed from an infected person to a mosquito through mosquito bites. An infected mosquito can then spread the virus to other people

Traveler Information

Clinician Information

  • Chikungunya in CDC’s Yellow Book (Health Information for International Travel)


This notice was originally posted September 24, 2020.