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  1. en.wikipedia.org › wiki › Yellow_feverYellow fever - Wikipedia

    Yellow fever is caused by Yellow fever virus (YFV), an enveloped RNA virus 40–50 nm in width, the type species and namesake of the family Flaviviridae. It was the first illness shown to be transmissible by filtered human serum and transmitted by mosquitoes, by American doctor Walter Reed around 1900.

    • History

      Spanish colonists recorded an outbreak in 1648 on the...

  2. May 15, 2024 · Overview. Yellow fever virus is spread to people by the bite of an infected mosquito. It is found in tropical and subtropical areas of Africa and South America. Yellow fever is a very rare cause of illness in U.S. travelers.

  3. May 6, 2024 · History. Western Africa has long been regarded as the home of yellow fever, although the first recorded outbreaks of the disease were in central and coastal South America after the Spanish conquest in the 16th century.

    • The Editors of Encyclopaedia Britannica
  4. May 15, 2024 · Yellow fever is caused by a virus that is found in Africa and South America. The virus belongs to a group of viruses called flaviviruses. Other flaviviruses cause disease in people, including dengue virus, West Nile virus, St. Louis encephalitis virus, and Japanese encephalitis virus. How it spreads.

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  6. Yellow fever is a haemorrhagic viral illness transmitted by bites from infected mosquitoes. “Yellow” refers to the skin colour presented by some patients as a consequence of liver swelling.

  7. May 31, 2023 · Español. Key facts. Yellow fever is an infectious disease transmitted by mosquitoes that bite mostly during the day. As of 2023, 34 countries in Africa and 13 countries in Central and South America are either endemic for, or have regions that are endemic for, yellow fever. Yellow fever is prevented by a vaccine, which is safe and affordable.

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