The Big Picture Book of Viruses: Bunyaviridae


Taxonomy: Comments: At least 7 groups (19 viruses) and 22 ungrouped viruses. Not shown to be antigenically related to members of other Bunyaviridae genera. For most, no biochemical characterisation of the viruses has been reported to confirm their family or generic status. Description is on the taxonomic level of family.

Taxon contains the following Genus: Bunyavirus; Nairovirus; Phlebovirus; Hantavirus;Tospovirus. Unassigned Viruses in Family: Serogroups: Bhanja virus Group; Kaisodi virus Group; Mapputta virus Group; Okola virus Group; Resistencia virus Group; Upolu virus Group; Yogue virus Group. Ungrouped viruses in the Family: Bangui virus [A0044] ; Batken virus; Belem virus; Belmont virus; Bobaya virus; Caddo Canyon virus; Chim virus; Enseada virus; Issyk-Kul virus [A0185] ; Keterah virus; Kowanyama virus; Lone Star virus; Pacora virus; Razdan virus; Salanga virus; Santarem virus; Sunday Canyon virus; Tai virus; Tamdy virus; Tataguine virus; Wanowrie virus; Witwatersrand virus; Yacaaba virus.

Host: Taxon infects vertebrates and plants.

Genome: Circular (through hydrogen-bonded ends, sometimes supercoiled); single stranded; RNA. Genome tripartite. Genome found in one type of particle only. Genomic nucleic acid negative sense and ambisense. Total genome 10500-22700 nucleotides long. Number of nucleotides of largest segment 6300-12000 (RNA-L). Of second largest 3500-6000 (RNA-M). Of third 1000-2200 (RNA-S). Genome sequence has terminal repeated sequences; reiterated terminal sequences; repeated at both ends. Nucleotide sequences of 3'-terminus complementary to similar regions on the 5' end (thus forming a panhandle); conserved nucleotide sequences; in each gene segment. Terminal repeats at the 3'-end 8-11 nucleotides long. Terminal repeats at the 5'-end 8-11 nucleotides long.

Morphology: Virions pleomorphic in shape; spheroidal. Virions one type of particle only. Virions enveloped; 3 nucleocapsid(s) per envelope; (80-)100(-120) nm in diameter. Surface projections of envelope distinct; spikes (of about 10 nm). Nucleocapsids filamentous; 200-3000 nm long (depending on arrangement); 2-2.5 nm in diameter. Symmetry helical.

(Note: for more information about the taxonomy and structure of this virus, see the ICTV database below.)

More Information:
Taxonomy: ICTV Data
WWW Sites: ATV Sites!
Tutorials: None Available

Bunyaviridae Images:
Genus Sub-Genus EM Images Example Virus Name Description of Image
b6s
 Bunyavirus an example image (from the ICTV database)
Bunyavirus
  • Anopheles A virus Group
    		•
    N/A
  • Anopheles B virus Group
    		•
    N/A
  • Bakau virus Group
    		•
    N/A
  • Bunyamwera virus Group
    		•
    N/A
    		 Bunyamwera virus
  • Bwamba virus Group
    		•
    N/A
  • C virus Group
    		•
    N/A
  • California encephalitis virus Group
    		•
    N/A
    		 California encephalitis virus
    grady2
    		 La Cross virus Two views of La Crosse virus as seen by transmission electron microscopy and the negative-stain technique. From the Wadsworth Center of the New York State Department of Health.
  • Capim virus Group
    		•
    N/A
  • Gamboa virus Group
    		•
    N/A
  • Guama virus Group
    		•
    N/A
  • Koongol virus Group
    		•
    N/A
  • Minatitlan virus Group
    		•
    N/A
  • Nyando virus Group
    		•
    N/A
  • Olifantsvlei virus Group
    		•
    N/A
  • Patois virus Group
    		•
    N/A
  • Simbu virus Group
    		•
    N/A
  • Tete virus Group
    		•
    N/A
  • Turlock virus Group
    		•
    N/A
    Hantavirus
  • Hantaan virus Group
    		•
    N/A
    		 Hantaan virus
    hanta
    		 Sin Nombre virus From Ray Bauman's Hantavirus Tutorial
    Nairovirus
  • Crimean-Congo hemorrhagic fever virus Group
    		•
    N/A
    		 Crimean-congo hemorrhagic fever virus
  • Dera Ghazi Khan virus Group
    		•
    N/A
  • Hughes virus Group
    		•
    N/A
  • Nairobi sheep disease virus Group
    		•
    N/A
  • Qalyub virus Group
    		•
    N/A
  • Sakhalin virus Group
    		•
    N/A
  • Thiafora virus Group
    		•
    N/A
    Phlebovirus
  • Sandfly fever virus Group
    		•
    N/A
    		 Sandfly fever Sicilian virus
    rvf3
    		 Rift valley fever virus (from Linda Stannard, of the Department of Medical Microbiology, University of Cape Town)
    rvfv-o~1-sm
    		 Rift valley fever virus replicating in an oligodendrogliocyte in the brain of a Lewis Rat that was just beginning to show signs of RVF encephalitis. It is instructive because there are nucleoprotein "rods" in the nucleus and various stages of encapsulation and release into smooth vessicles in the cytoplasm. (from Art Anderson)
  • Uukuniemi virus Group
    		•
    N/A
    		 Uukuniemi virus
    Tospovirus
  • Tospovirus
    		•
    N/A
    		 Tomato spotted wilt virus

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