- 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.
- 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 aegyptiAlso called: yellow jack, black vomit
- An infectious tropical disease caused by an arbovirus transmitted by mosquitoes of the genera Aedes, especially A. aegypti and Haemagogus, and characterized by high fever, jaundice, and vomit that is dark in color as a result of gastrointestinal hemorrhaging.
- 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.