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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.

Yellow fever continues to pose a significant public health threat in areas of South America and Africa.

From Science Daily • Nov. 27, 2025

Yellow fever is caused by a virus transmitted to humans by infected mosquitoes.

From BBC • Apr. 17, 2025

Yellow fever is caused by a virus transmitted by the bite of infected mosquitoes.

From Seattle Times • May 27, 2024

Yellow fever was often called “the stranger’s disease.”

From Slate • Aug. 4, 2020

Yellow fever had invaded his body for a second time.

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