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The page below is a sample from the LabCE course Mosquito-Borne Viral Diseases. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Clinical Manifestations of Yellow Fever

Yellow fever is in a person's blood three to six days before symptoms begin and five days after. The acute stage presents as fever, severe headache, muscle pain, chills, anorexia, nausea, and vomiting. These symptoms last three to four days and then most people recover. About 15% of those infected develop jaundice, high fever, and bleeding. In 10-14 days 20-50% of those with severe disease go into shock and organ failure and die in 10-14 days. If they live, recovery may take many months.
There is no specific antiviral treatment for yellow fever. Vaccination is highly recommended. The vaccine has been available many years and is considered safe and effective.