Phylogenetic tree (Neighbor-joining) of TULV based on the coding region of the S segment (nt 141-1206). Only bootstrap support values greater than 70% are shown. PHV, Prospect Hill virus, strain PH-1 (GenBank accession number Z49098); BLLV, Bloodland Lake virus, strain MO46 (U19303); ISLAV, Isla Vista virus, strain MC-SB-47 (U19302). Tula virus (TULV) strains: Taldyk343, Taldykorgan/Ma343/2003 (AM945879); Karatal340, Karatal/Ma340/2003 (AM945878); Karatal322, Karatal/Ma322/2003 (AM945877); Omsk23, MG23/Omsk (AF442621); Tula 249, Tula/249Mr/87 (Z30944); Tula76, Tula/76Ma/87 (Z30941); Tula175, Tula/175Ma/87 (Z30943); Tula53, Tula/53Ma/87 (Z30942); Tula23, Tula/23Ma/87 (Z30945); GermD5-98, Germany/D5-98 (AF289819); GermD63-98, Germany/D63-98 (AF289821); GermD17-98, Germany/D17-98 (AF289820); Lodz1 (AF063892); Lodz2 (AF063897); Serbia (AF017659); Kosice667, Kosice/667Ma/95 (Y13980); Kosice144, Kosice/144Ma/95 (Y13979); Germ20, Germany/g20-s (AF164093); Switz91, Switzerland/91Ma; Croatia, Croatia/c109-s (AF164094); Malacky370, Malacky/370Ma/94 (U31534); Malacky32, Malacky/32Ma/94 (Z48234); Koziky47, Koziky/5247Ma/94 (AJ223600); Koziky76, Koziky/5276Ma/94 (AJ223601); Moravia02, Moravia/5302Ma/94 (Z49915); Moravia86, Moravia/5286Ma/94 (Z48573); Moravia93, Moravia/5293Ma/94 (Z48574); Moravia94, Moravia/5294Ma/94 (Z48741).