What is yellow fever?
A person with yellow fever has a life-threatening viral infection, transmitted through the bite of a mosquito. Yellow fever is most common in the tropics. The infection can cause encephalitis or meningitis. Yellow fever can also cause inflammation of small blood vessels, which can result in serious bleeding.

What are the symptoms of yellow fever?
The initial symptoms of yellow fever include body aches, joint pains, headache and fever. Symptoms of worsening yellow fever include blood in the urine, rectal bleeding, bruising and a rash.

How does the doctor treat yellow fever?
Treatment for yellow fever includes rest, plenty of fluids, and acetaminophen or nonsteroidal anti-inflammatory medications for pain and fever. Severe yellow fever may require intravenous fluids and blood transfusions.