flavivirus
noun
fla·vi·vi·rus ˈflā-vi-ˌvī-rəs 
: any of a family (Flaviviridae and especially genus Flavivirus) of single-stranded RNA viruses transmitted especially by ticks and mosquitoes and including the causative agents of dengue, hepatitis C, hog cholera, Saint Louis encephalitis, West Nile virus, and yellow fever
Example Sentences
Recent Examples on the Web Zika virus is a flavivirus, part of the same family as yellow fever, West Nile, chikungunya and dengue fever. 
Cnn Editorial Research, CNN, 27 May 2021 Yellow fever, a flavivirus, has parallels to SARS-CoV-2, the novel coronavirus that causes COVID. Alicia Ault, Smithsonian Magazine, 2 June 2020 Zika, a flavivirus that falls under the same category as West Nile, causes only mild symptoms — at worst — in most people. Rose Minutaglio, PEOPLE.com, 3 July 2019 However, the study said technical obstacles will delay making vaccines against Zika and other related viruses, called flaviviruses. Bradley J. Fikes, sandiegouniontribune.com, 4 Oct. 2017 Upon entering a human body, had the long-unheralded flavivirus always had the power to attack any developing brain tissue inside its human host and wreak a special kind of havoc? Melissa Healy, latimes.com, 28 Sep. 2017 Also, the disease belongs to a family of viruses known as flaviviruses, which scientists have been battling for more than a century. Katie Thomas, New York Times, 19 Nov. 2016 False positives, however, are possible because Zika is a flavivirus, like dengue and yellow fever; currently a positive test result can be triggered by one of the related viruses. Marc Santora, New York Times, 1 July 2016 See More
Cnn Editorial Research, CNN, 27 May 2021 Yellow fever, a flavivirus, has parallels to SARS-CoV-2, the novel coronavirus that causes COVID. Alicia Ault, Smithsonian Magazine, 2 June 2020 Zika, a flavivirus that falls under the same category as West Nile, causes only mild symptoms — at worst — in most people. Rose Minutaglio, PEOPLE.com, 3 July 2019 However, the study said technical obstacles will delay making vaccines against Zika and other related viruses, called flaviviruses. Bradley J. Fikes, sandiegouniontribune.com, 4 Oct. 2017 Upon entering a human body, had the long-unheralded flavivirus always had the power to attack any developing brain tissue inside its human host and wreak a special kind of havoc? Melissa Healy, latimes.com, 28 Sep. 2017 Also, the disease belongs to a family of viruses known as flaviviruses, which scientists have been battling for more than a century. Katie Thomas, New York Times, 19 Nov. 2016 False positives, however, are possible because Zika is a flavivirus, like dengue and yellow fever; currently a positive test result can be triggered by one of the related viruses. Marc Santora, New York Times, 1 July 2016 See More Word History
Etymology
New Latin, from Latin flavus yellow + New Latin -i- + virus — more at virus
First Known Use
1974, in the meaning defined above
Medical Definition
flavivirus
noun
fla·vi·vi·rus ˈflā-vi-ˌvī-rəs
1
capitalized : a genus of the family Flaviviridae of single-stranded RNA viruses that are transmitted by arthropod vectors and especially by ticks and mosquitoes and that include the causative agents of dengue, Japanese B encephalitis, Saint Louis encephalitis, West Nile fever, and yellow fever
2
: any virus of the genus Flavivirus or the family Flaviviridae