Flavivirus (also Japanese Encephalitis Antigenic Complex) is a genus of the family Flaviviridae. This complex includes the West Nile virus and several other viruses which cause encephalitis.

Flavivirus share a common size (40-60 nanometres), symmetry (enveloped, icosahedral nucleocapsid), nucleic acid (positive-sense, single stranded RNA approximately 10,000-11,000 bases), and appearance in the electron microscope.

Species

• Genus Flavivirus
  • Tick-borne viruses
    • Mammalian tick-borne virus group
      • Gadgets Gully virus (GGYV)
      • Kadam virus (KADV)
      • Kyasanur Forest disease virus (KFDV)
      • Langat virus (LGTV)
      • Omsk hemorrhagic fever virus (OHFV)
      • Powassan virus (POWV)
      • Royal Farm virus (RFV)
      • Tick-borne encephalitis virus (TBEV)
      • Louping ill virus (LIV)
    • Seabird tick-borne virus group
      • Meaban virus (MEAV)
      • Saumarez Reef virus (SREV)
      • Tyuleniy virus (TYUV)
  • Mosquito-borne viruses
    • Aroa virus group
      • Aroa virus (AROAV)
    • Dengue virus group
      • Dengue virus (DENV)
      • Kedougou virus (KEDV)
    • Japanese encephalitis virus group
      • Cacipacore virus (CPCV)
      • Koutango virus (KOUV)
    • Japanese encephalitis virus (JEV)
      • Murray Valley encephalitis virus (MVEV)
      • St. Louis encephalitis virus (SLEV)
      • Usutu virus (USUV)
      • West Nile virus (WNV)
      • Yaounde virus (YAOV)
    • Kokobera virus group
      • Kokobera virus (KOKV)
    • Ntaya virus group
      • Bagaza virus (BAGV)
      • Ilheus virus (ILHV)
      • Israel turkey meningoencephalomyelitis virus (ITV)
      • Ntaya virus (NTAV)
      • Tembusu virus (TMUV)
    • Spondweni virus group
      • Zika virus (ZIKV)
    • Yellow fever virus group
      • Banzi virus (BANV)
      • Bouboui virus (BOUV)
      • Edge Hill virus (EHV)
      • Jugra virus (JUGV)
      • Saboya virus (SABV)
      • Sepik virus (SEPV)
      • Uganda S virus (UGSV)
      • Wesselsbron virus (WESSV)
      • Yellow fever virus (YFV)
  • Viruses with no known arthropod vector
    • Entebbe virus group
      • Entebbe bat virus (ENTV)
      • Yokose virus (YOKV)
    • Modoc virus group
      • Apoi virus (APOIV)
      • Cowbone Ridge virus (CRV)
      • Jutiapa virus (JUTV)
      • Modoc virus (MODV)
      • Sal Vieja virus (SVV)
      • San Perlita virus (SPV)
    • Rio Bravo virus group
      • Bukalasa bat virus (BBV)
      • Carey Island virus (CIV)
      • Dakar bat virus (DBV)
      • Montana myotis leukoencephalitis virus (MMLV)
      • Phnom Penh bat virus (PPBV)
      • Rio Bravo virus (RBV)