title: The isolation of an agent related to Uukuniemi virus from Norwegian Ixodes ricinus ticks.
mesh_terms: D000818:Animals; D001103:Arboviruses / Q000276:immunology / Q000302:isolation & purification*; D006385:Hemagglutination Inhibition Tests; D008854:Microscopy, Electron; D009664:Norway; D013987:Ticks