Yellow fever
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Explore overview, symptoms, causes, treatment, diagnosis, prevention, and FAQ articles for this condition.
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What is Yellow fever
Yellow fever is an acute viral disease caused by the yellow fever virus, a flavivirus transmitted primarily by infected mosquitoes. It affects the bloodstream, immune system, liver, and, in severe cases, other organs through a combination of direct viral replication and…
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Symptoms of Yellow fever
The symptoms of Yellow fever usually begin with a sudden fever, headache, muscle pain, back pain, nausea, vomiting, and weakness. In some people, these early symptoms fade after a few days, while in others the illness progresses to a more dangerous…
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Causes of Yellow fever
Yellow fever is caused by infection with the yellow fever virus, a mosquito-borne flavivirus that enters the body after a bite from an infected mosquito. The disease develops through a specific chain of biological events: the virus first replicates in local…
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Diagnosis of Yellow fever
Yellow fever is a viral disease transmitted by infected mosquitoes and caused by a flavivirus that targets the liver, blood vessels, and immune system. Diagnosis is not based on a single symptom, because the illness can begin like many other tropical…
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Treatment for Yellow fever
What treatments are used for Yellow fever? Yellow fever is managed primarily with supportive medical care rather than a virus-targeting cure, because there is no widely available antiviral treatment that eliminates the yellow fever virus once infection has occurred. Treatment focuses…
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Prevention of Yellow fever
Yellow fever can be prevented in many cases, but prevention is not absolute in every setting. The disease is caused by the yellow fever virus, which is transmitted to humans by infected mosquitoes, mainly species in the Aedes and Haemagogus groups…
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FAQ about Yellow fever
This FAQ article explains the key facts about yellow fever, including what it is, how it spreads, what symptoms it causes, how doctors diagnose it, and what can be done to prevent it. Yellow fever is a serious mosquito-borne viral illness,…