Iotatorquevirus

Iotatorquevirus is a genus of viruses in the family Anelloviridae, in group II in the Baltimore classification. It includes two species of Torque teno sus virus.

Iotatorquevirus
Virus classification
(unranked): Virus
Realm: incertae sedis
Kingdom: incertae sedis
Phylum: incertae sedis
Class: incertae sedis
Order: incertae sedis
Family: Anelloviridae
Genus: Iotatorquevirus
Type species
Torque teno sus virus 1a
Species
  • Torque teno sus virus 1a
  • Torque teno sus virus 1b

Virology

The virons are small and non-enveloped.

The viruses are usually acquired soon after birth and may invade virtually any tissue in the body.[1]

They are widespread in the pig population.[2][3]

Genome

Iotatorqueviruses have a circular, single-stranded DNA genome. The genome is negative-sense.

Clinical

Postweaning multisystemic wasting syndrome has been causally associated with porcine circovirus type 2.[4] The Iotatorquevirus have also been linked with this syndrome but a causative role—if one exists—has yet to be established.[5]

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References
  1. Aramouni M, Segalés J, Cortey M, Kekarainen T (2010). "Age-related tissue distribution of swine Torque teno sus virus 1 and 2". Vet. Microbiol. 146 (3–4): 350–3. doi:10.1016/j.vetmic.2010.05.036. PMID 20646878.
  2. Brink M, Ståhl K, Masembe C, Okurut AR, Berg M, Blomström AL (2012). "First time molecular detection and phylogenetic relationships of torque teno sus virus 1 and 2 in domestic pigs in Uganda: further evidence for a global distribution". Virol. J. 9: 39. doi:10.1186/1743-422X-9-39. PMC 3298808. PMID 22336096.
  3. Kekarainen T, Segalés J (2012). "Torque teno sus virus in pigs: an emerging pathogen?". Transbound Emerg Dis. 59 (Suppl 1): 103–8. doi:10.1111/j.1865-1682.2011.01289.x. PMID 22252126.
  4. Wallgren P, Belák K, Ehlorsson CJ, Bergström G, Lindberg M, Fossum C, Allan GM, Robertsson JA (2007). "Postweaning multisystemic wasting syndrome (PMWS) in Sweden from an exotic to an endemic disease". Vet Q. 29 (4): 122–37. doi:10.1080/01652176.2007.9695238. PMID 18265702.
  5. Nieto D, Aramouni M, Grau-Roma L, Segalés J, Kekarainen T (2011). "Dynamics of Torque teno sus virus 1 (TTSuV1) and 2 (TTSuV2) DNA loads in serum of healthy and postweaning multisystemic wasting syndrome (PMWS) affected pigs" (PDF). Vet. Microbiol. 152 (3–4): 284–90. doi:10.1016/j.vetmic.2011.05.020. PMID 21680113.
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