title: Razdan virus, a new ungrouped bunyavirus isolated from Dermacentor marginatus ticks in Armenia.
abstract: A virus, designated Razdan, was isolated from Dermacentor marginatus ticks in the Armenian S.S.R. in 1973. The complement fixation tests revealed no antigenic relationships to 74 tick-borne arboviruses. The size of the virus is about 100 nm; it agglutinates goose erythrocytes at pH 5.5--7.0, is pathogenic for newborn, 14-day-old and adult white mice and multiplies in primary and continuous cell cultures. Morphological properties of the virus permit its classification as a member of the family Bunyaviridae.
mesh_terms: D000818:Animals; D000956:Antigens, Viral / Q000032:analysis; D001103:Arboviruses / Q000145:classification*; D001136:Armenia; D002042:Bunyamwera virus / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology; D003168:Complement Fixation Tests; D003870:Dermacentor / Q000382:microbiology*; D012756:Sheep / Q000469:parasitology*; D009626:Terminology as Topic; D013987:Ticks / Q000382:microbiology*
chemical_list: D000956:Antigens, Viral