Salte directo a la búsqueda Salte directo al listado de A-Z Salte directo a la navegación Salte directo al contenido Salte directo a las opciones de la página
CDC Home

Malaria

What is malaria?

Anopheles mosquito

Malaria is a disease spread through mosquito bites. Symptoms usually appear within in 7-30 days but can take up to one year to develop. Symptoms include high fevers, shaking chills, and flu-like illness. Without treatment, malaria can cause severe illness and even death.

Who is at risk?

Malaria occurs in Africa, Central and South America, parts of the Caribbean, Asia, Eastern Europe, and the South Pacific (See maps: Eastern Hemisphere and Western Hemisphere). People spending time outdoors, including sleeping outside, are at higher risk for malaria. Every year about 1500 cases of malaria and 5 deaths occur among international travelers from the United States. Read stories of  people who have had malaria.

What can travelers do to prevent malaria?

taking pills

Travelers can protect themselves from malaria by taking prescription medicine and preventing mosquito bites.

Take prescription medicine if recommended for your destination:

  • Talk to your doctor about which medicine is best for you.
  • There are prescription medicines you can take to prevent malaria.
  • Take this medicine before, during, and after your trip.

Prevent mosquito bites:

man spraying insect repellent on his arm
  • Cover exposed skin by wearing long-sleeved shirts, long pants, and hats.
  • Use an appropriate insect repellent as directed.
  • Higher percentages of active ingredient provide longer protection. Use products with the following active ingredients:
    • DEET (Products containing DEET include Off!, Cutter, Sawyer, and Ultrathon)
    • Picaridin (also known as KBR 3023, Bayrepel, and icaridin products containing picaridin include Cutter Advanced, Skin So Soft Bug Guard Plus, and Autan [outside the US])
    • Oil of lemon eucalyptus (OLE) or PMD (Products containing OLE include Repel and Off! Botanicals)
    • IR3535  (Products containing IR3535 include Skin So Soft Bug Guard Plus Expedition and SkinSmart)
  • Always follow product directions and reapply as directed:
    • If you are also using sunscreen, apply sunscreen first and insect repellent second.
    • Follow package directions when applying repellent on children. Avoid applying repellent to their hands, eyes, and mouth.
  • Use permethrin-treated clothing and gear (such as boots, pants, socks, and tents). You can buy pre-treated clothing and gear or treat them yourself:
    • Treated clothing remains protective after multiple washings. See the product information to find out how long the protection will last.
    • If treating items yourself, follow the product instructions carefully.
    • Do not use permethrin directly on skin.
  • Stay and sleep in screened or air conditioned rooms.
  • Use a bed net if the area where you are sleeping is exposed to the outdoors.

If you are bitten by mosquitoes:

  • Avoid scratching mosquito bites.
  • Apply hydrocortisone cream or calamine lotion to reduce itching.

If you feel sick and think you may have malaria:

Traveler Information

Clinician Information

 
Contact Us:
  • Centers for Disease Control and Prevention
    1600 Clifton Rd
    Atlanta, GA 30333
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
  • Contact CDC-INFO
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
A-Z Index
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #