What does arbovirus mean?
An arbovirus is any virus that is transmitted to humans or other vertebrate animals through the bite of an infected arthropod — most commonly mosquitoes and ticks. The word itself is a contraction of 'arthropod-borne virus', coined in the mid-twentieth century by virologists who needed a convenient umbrella term for viruses sharing this mode of transmission. Because the category is defined by ecology rather than genetics, arboviruses span multiple distinct viral families, including well-known pathogens responsible for dengue fever, yellow fever, Zika, chikungunya, West Nile fever, and various forms of viral encephalitis. The term appears almost exclusively in medical, scientific, and public-health contexts: in research papers, outbreak reports, and advisories from bodies such as the World Health Organization and the CDC. For general readers, its value lies in understanding that diseases as varied as dengue and West Nile fever share a common thread — delivery by a biting insect or tick.
nounAny of a group of RNA viruses that are transmitted to humans and other animals by the bite of infected arthropods, chiefly mosquitoes and ticks. The term is a contraction of 'arthropod-borne virus' and refers to a mode of transmission rather than a formal taxonomic grouping.
- Any RNA virus transmitted to vertebrates by the bite of infected blood-feeding arthropods (especially mosquitoes and ticks); used as a functional/ecological label rather than a taxonomic one.
"Dengue fever, Zika, and yellow fever are all caused by arboviruses spread by mosquitoes."
"Public health officials intensified mosquito control after several cases of arbovirus encephalitis were confirmed in the region."
"The lab studies how climate change expands the range of ticks that carry arboviruses."
Standard English pluralization with -es; used when referring collectively to multiple arthropod-borne viruses.
"Surveillance programs monitor dozens of arboviruses across tropical and temperate regions."
'Arbovirus' isn't a family of viruses at all — it's just shorthand for any virus hitching a ride inside a mosquito or tick.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of arbovirus
The word 'arbovirus' was coined in English in the mid-twentieth century as a contraction of 'arthropod-borne virus'. Its first element derives ultimately from the Latin 'arbor' (tree), via the Modern Latin 'arthropoda', while 'virus' comes from the Latin word for poison or venomous fluid. Related words sharing the Latin root include 'arboreal', 'arborist', and 'arboretum'.
How arbovirus is actually used
A technical term used mainly in medicine, public health, virology, and epidemiology; rare in everyday conversation. Because it describes transmission rather than genetic relatedness, arboviruses belong to several different viral families.
Easily confused with arbovirus
An aerovirus would be an airborne-transmitted virus, whereas an arbovirus is specifically transmitted by biting arthropods such as mosquitoes and ticks.