Arteriviridae

Arteriviridae is a family of enveloped, positive-strand RNA viruses in the order Nidovirales which infect vertebrates.^[1][2] Host organisms include equids, pigs, Possums, nonhuman primates, and rodents. The family includes, for example, equine arteritis virus in horses which causes mild-to-severe respiratory disease and reproductive failure, porcine reproductive and respiratory syndrome virus type 1 and type 2 in pigs which causes a similar disease, simian hemorrhagic fever virus which causes a highly lethal fever, lactate dehydrogenase–elevating virus which affects mice, and wobbly possum disease virus.^[3][4]

Arteriviridae
Arterivirus virion
Equine artevirus genome
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Pisuviricota
Class:	Pisoniviricetes
Order:	Nidovirales
Suborder:	Arnidovirineae
Family:	Arteriviridae

Structure

Member viruses are enveloped, spherical, and 45–60 nm in diameter.^[5]

Genome

Arteriviruses have a positive-sense single-stranded RNA genome.^[5]

Taxonomy

Phylogenetic tree of arteriviruses

The family contains six subfamilies that contain 13 genera. This taxonomy is shown hereafter (-virinae denotes subfamily and -virus denotes genus):^[6]

• Crocarterivirinae
  • Muarterivirus
• Equarterivirinae
  • Alphaarterivirus
• Heroarterivirinae
  • Lambdaarterivirus
• Simarterivirinae
  • Deltaarterivirus
  • Epsilonarterivirus
  • Etaarterivirus
  • Iotaarterivirus
  • Thetaarterivirus
  • Zetaarterivirus
• Variarterivirinae
  • Betaarterivirus
  • Gammaarterivirus
  • Nuarterivirus
• Zealarterivirinae
  • Kappaarterivirus