Yellow fever is a viral infection spread by mosquitoes.
Yellow fever is caused by a virus carried by mosquitoes. You can catch this disease if you are bitten by a mosquito infected with this virus.
This disease is common in South America and in sub-Saharan Africa.
Anyone can get yellow fever, but the elderly have a higher risk of severe infection.
If a person is bitten by an infected mosquito, symptoms usually develop 3 - 6 days later.
Yellow fever has three stages:
Symptoms may include:
The health care provider will examine the person. This may show liver and kidney failure and shock.
It is important to tell your doctor if you have traveled to areas where the disease is known to thrive. Blood tests can confirm the diagnosis.
There is no specific treatment for yellow fever. Treatment for symptoms can include:
Yellow fever can cause severe problems, including internal bleeding. Death is possible.
Get medical attention at least 10 - 14 days before traveling to an endemic area for yellow fever to find out whether you should be vaccinated against the disease.
Tell your health care provider right away if you or your child develop fever, headache, muscle aches, vomiting, or jaundice, especially if you have traveled to an area where yellow fever is known to occur.
If you will be traveling to an area where yellow fever is common:
There is an effective vaccine against yellow fever. Ask your doctor at least 10 - 14 days before traveling if you should be vaccinated against yellow fever.
Bausch DG. Viral hemorrhagic fevers.In: Goldman L, Schafer AI, eds.Cecil Medicine. 24th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 389.
Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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