SpAr 2317 virus Spav A strain of

Tacaiuma virus in the genus Bunyavirus, belonging to the Anopheles A serogroup. Isolated from mosquitoes, Anopheles sp. Not reported to cause disease in humans.

Calisher CH et al (1980) Bull Pan Am Hlth Org 14, 386

Sp 1 K (NBL-10) cells (CCL 78) A hetero-ploid cell line derived from trypsinized kidney tissue of the Atlantic spotted dolphin Stenella plagiodon. The line was developed to allow viral studies to be made in the cells of a marine mammal.

spaceflight and viruses The stress of being launched into space followed by micro-gravity can cause reactivation and shedding of latent herpesviruses such as EBV and CMV. 71 astronauts studied by PCR showed increased shedding of CMV in their urine before spaceflight compared to ground-based controls. After return to earth the astronauts had up to 8fold higher antibody titers to CMV than controls, suggesting that CMV replication occurred during spaceflight.

Mehta SK et al (2000) J Inf Dis 182, 1761

Sparrowpox virus (SRPV) A species in the genus Avipoxvirus.

Giddens WE et al (1971) Vet Pathol 8, 260

species A virus species is defined by the International Committee on Taxonomy of Viruses (ICTV) as a polythetic class of viruses that constitutes a replicating lineage and occupies a particular ecological niche. Members of a polythetic class are defined by more than one property and no single property is essential or necessary. Does not depend on a unique characteristic.

van Regenmortel MHV (1990) Intervirology 31, 241

species barrier

species barrier Host properties that limit the ability of most viruses to replicate in more than one species. Many viruses display increased pathogenicity in a new species, but few of the factors that limit the ability of viruses to cross species barriers are well understood.

Mahy BWJ and Brown CC (2000) Rev Sci Tech Off Int Epiz 19, 33

Mahy BWJ and Murphy FA (1998) In Virology, vol. 1 of Topley & Wilson's Microbiology and Microbial Infections, Ninth edition, edited by BWJ Mahy and L Collier. London: Arnold, p. 1011

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