tula orthohantavirus tula orthohantavirus tula orthohantavirus, formerly tula virus, (tulv) is a single-stranded, negative-sense rna virus species of orthohantavirus first isolated from a european common vole (microtus arvalis) found in central russia. it causes hantavirus hemorrhagic fever with renal syndrome. the microtus species are also found in north america, europe, scandinavia, slovenia, asia, and western russia. human cases of tula orthohantavirus have also been reported in switzerland and germany. tula orthohantavirus virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: negarnaviricota class: ellioviricetes order: bunyavirales family: hantaviridae genus: orthohantavirus species: tula orthohantavirus synonyms tula hantavirus tula virus