Yellow fever is a viral infection that is primarily spread by the bite of infected mosquitoes. The disease is caused by the yellow fever virus, which belongs to the Flaviviridae family. Yellow fever occurs mainly in tropical regions of Africa and South America.
The symptoms of yellow fever can vary from mild to severe and can include fever, headache, muscle and joint pain, nausea, vomiting, and fatigue. In severe cases, yellow fever can lead to liver and kidney failure, bleeding disorders, and death.
There is no specific treatment for yellow fever, but supportive care can help manage the symptoms. The best way to prevent yellow fever is through vaccination. The yellow fever vaccine is a live attenuated vaccine that provides long-lasting immunity against the virus. Travelers to areas where yellow fever is endemic should be vaccinated before their trip.