'Arboviruses'

There are a large group (more than 400) of enveloped RNA viruses which are transmitted primarily (but not exclusively) by Arthropod vectors (mosquitoes, sand-flies, fleas, ticks, lice, etc) and which were previously grouped together under the name 'Arboviruses'. More recently, this disordered assemblage has been split into four bona fide virus families:

Family	Genus	Type Species	Hosts
Group IV: (-)sense RNA Viruses
Arenaviridae	Arenavirus	Lymphocytic choriomeningitis virus	Vertebrates
Bunyaviridae	Bunyavirus	Bunyamwera virus	Vertebrates
	Hantavirus	Hantaan virus	Vertebrates
	Nairovirus	Nairobi sheep disease virus	Vertebrates
	Phlebovirus	Sandfly fever Sicilian virus	Vertebrates
	Tospovirus	Tomato spotted wilt virus	Plants
Group IV: (+)sense RNA Viruses
Flaviviridae	Flavivirus	Yellow fever virus	Vertebrates
	Pestivirus	Bovine diarrhea virus 1	Vertebrates
	Hepacivirus	Hepatitis C virus	Vertebrates
Togaviridae	Alphavirus	Sindbis virus	Vertebrates
Togaviridae	Rubivirus	Rubella virus	Vertebrates

Mostly, these viruses are relatively fragile (e.g. not resistant to desiccation), therefore many are reliant on vector for transmission. This dependency tends to limit them to tropical & subtropical regions (some exceptions - rubella, HCV). They have complex life-cycles & replicate in both the primary hosts, secondary hosts (which may often be dead-ends) & the Arthropod vectors. Therefore, there may be several animal reservoirs for each virus - eradication would be practically impossible & the best approach is to block transmission by human vaccination/eradication of the vector (e.g. mosquitoes):

Transmission of arboviruses

'Arboviruses'

Many Arboviruses are particularly important in that they are emerging viruses.