DESCRIPTION OF VIRUSES

Family Bunyaviridae

Genus Phlebovirus

Genus Phlebovirus

Type Species

Rift Valley fever virus

(RVFV)

Distinguishing Features

The surface morphology of phleboviruses is distinct in having small round subunits with a central hole (Fig. 7). The consensus terminal nucleotide sequences of the L, M and S segments are UGUGUUUC . . . at the 3-end and ACACAAAG . . . at the 5-end. The S RNA exhibits an ambisense coding strategy, i.e., it is transcribed by the virion RNA polymerase to a subgenomic virus-complementary sense mRNA that encodes the N protein and, from a full-length antigenome S RNA, to a subgenomic virus-sense mRNA that encodes a nonstructural (NSs) protein. The M segment of viruses in the Sandfly fever group but not viruses in the Uukuniemi group have a preglycoprotein coding region that codes for a nonstructural protein(s) (NSm). The similar sizes of the G1 and G2 proteins account for the different G1:G2 order in the M segments of different viruses. Phleboviruses are antigenically unrelated to members of other genera, but cross-react serologically among themselves to different degrees. Sandfly fever group viruses are transmitted by phlebotomines, mosquitoes or ceratopogonids of the genus Culicoides; Uukuniemi group viruses are transmitted by ticks.

List of Species Demarcation Criteria in the Genus

The lack of biochemical data for most phleboviruses dictates that the species are defined by the serological relationships, and are distinguishable by four-fold differences in two-way neutralisation tests.

List of Species in the Genus

Official virus species names are in italics. Tentative virus species names, alternative names ( ), strains or serotypes are not italicized. Under each virus species name is listed a number of other viruses of unknown exact taxonomic status. They differ from the listed virus species antigenically as well as in terms of host range vector species, geographical origins and pathogenic properties. Virus names, vector types, genome sequence accession numbers [ ], and assigned abbreviations ( ) are:

Species in the Genus

Bujaru virus

(BUJV)

BeAn 47693 virus

N.D.

(BUJV)

Munguba virus

phlebotomines

(MUNV)

Chandiru virus

(CDUV)

BeH 2251 virus

N.D.

(CDUV)

Alenquer virus

N.D.

(ALEV)

Itaituba virus

N.D.

(ITAV)

Nique virus

phlebotomines

(NIQV)

Oriximina virus

phlebotomines

(ORXV)

Turuna virus

phlebotomines

(TUAV)

Chilibre virus

(CHIV)

Chilibre virus VP-118D

phlebotomines

(CHIV)

Cacao virus

phlebotomines

(CACV)

Frijoles virus

(FRIV)

Frijoles virus VP-161A

phlebotomines

(FRIV)

Joa virus

N.D.

(JOAV)

Punta Toro virus

(PTV)

Punta Toro virus D-4021A

phlebotomines

[M: M11156]

(PTV)

[S: K02736]

Buenaventura virus

phlebotomines

(BUEV)

Rift Valley fever virus

mosquitoes

[L: X56464]

(RVFV)

[M: M11157]

[S: X53771]

Belterra virus

N.D.

(BELTV)

Icoaraci virus

phlebotomines

mosquitoes

(ICOV)

Salehebad virus

(SALV)

Salehebad I-81 virus

phlebotomines

(SALV)

Arbia virus

phlebotomines

(ARBV)

Sandfly fever Naples virus

(SFNV)

Sabin virus

phlebotomines

(SFNV)

Karimabad virus

phlebotomines

(KARV)

Tehran virus

phlebotomines

(THEV)

Toscana virus

phlebotomines

[L: X68414]

(TOSV)

[M: X89628]

[S: X53794]

Uukuniemi virus

(UUKV)

Uukuniemi virus S 23

ticks

[L: D10759]

(UUKV)

[M: M17417]

[S: M33551]

EgAN 1825-61 virus

N.D.

(EGAV)

Fin V 707 virus

N.D.

(FINV)

Grand Arbaud virus

ticks

(GAV)

Manawa virus

ticks

(MWAV)

Murre virus

N.D.

(MURV)

Oceanside virus

ticks

(OCV)

Ponteves virus

ticks

(PTVV)

Precarious Point virus

ticks

(PPV)

RML 105355 virus

ticks

(RMLV)

St. Abbs Head virus

ticks

(SAHV)

Tunis virus

N.D.

(TUNV)

Zaliv Terpeniya virus

ticks

(ZTV)

Tentative Species in the Genus

Aguacate virus

phlebotomines

(AGUV)

Anhanga virus

N.D.

(ANHV)

Arboledas virus

phlebotomines

(ADSV)

Arumowot virus

mosquitoes

(AMTV)

Caimito virus

phlebotomines

(CAIV)

Chagres virus

phlebotomines,

mosquitoes

(CHGV)

Corfou virus

phlebotomines

(CFUV)

Gabek Forest virus

N.D.

(GFV)

Gordil virus

N.D.

(GORV)

Itaporanga virus

mosquitoes

(ITPV)

Odrenisrou virus

mosquitoes

(ODRV)

Pacui virus

phlebotomines

(PACV)

Rio Grande virus

N.D.

(RGV)

Sandfly fever Sicilian virus

phlebotomines

[S: J04418]

(SFSV)

Saint-Floris virus

N.D.

(SAFV)

Urucuri virus

N.D.

(URUV)


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