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yellow fever

American  

noun

Pathology.
  1. an acute, often fatal, infectious febrile disease of warm climates, caused by an RNA virus transmitted by a mosquito, especially Aedes aegypti, and characterized by liver damage and jaundice.


yellow fever British  

noun

  1. Also called: yellow jack.   black vomit.  an acute infectious disease of tropical and subtropical climates, characterized by fever, haemorrhages, vomiting of blood, and jaundice: caused by a virus transmitted by the bite of a female mosquito of the species Aedes aegypti

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

yellow fever Scientific  
/ yĕlō /
  1. A life-threatening infectious disease caused by a virus of the genus Flavivirus and characterized by fever, jaundice, and internal bleeding. Yellow fever occurs mainly in tropical regions of Africa and Latin America and is transmitted by mosquitoes.


Etymology

Origin of yellow fever

First recorded in 1730–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Four in particular cause the most human suffering worldwide: chikungunya, Zika, dengue, and yellow fever.

From Slate Aug. 4, 2026

Not only do they drive residents nuts with itchy bites, but they can carry a number of potentially serious diseases, including dengue, Zika, chikungunya and yellow fever.

From Los Angeles Times Jun. 4, 2026

As it happened, Fordlandia was beset by smallpox and yellow fever, rubber-destroying fungi, and labor unrest that required military intervention.

From Barron's Jan. 18, 2026

The Aedes mosquito, primarily Aedes aegypti and Aedes albopictus, is responsible for transmitting chikungunya as well as other major viruses like dengue, Zika, and yellow fever.

From Science Daily Oct. 10, 2025

No one would ever know precisely how many Philadelphians died of yellow fever in 1793.

From "An American Plague: The True and Terrifying Story of the Yellow Fever Epidemic of 1793" by Jim Murphy

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