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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:

And after being vaccinated against yellow fever and transferred to Louisiana, she was told she had a flight to DR Congo the next day.

From BBC May 22, 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

Professor Daniel Watterson noted that the new findings offer important insights into the biology of yellow fever and could guide the development of improved vaccines and antiviral tools for this virus and other orthoflaviviruses.

From Science Daily Nov. 27, 2025

He died of yellow fever during a voyage to the Caribbean, and Cassandra never married.

From Los Angeles Times May 2, 2025

House after house was decorated with a tiny red flag, the sign that yellow fever had invaded it.

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

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