title: Relationship between strains of Crimean haemorrhagic fever and Congo viruses.
mesh_terms: D000818:Animals; D001103:Arboviruses / Q000145:classification*; D003168:Complement Fixation Tests; D006224:Cricetinae; D006482:Hemorrhagic Fevers, Viral / Q000382:microbiology*; D006801:Humans; D005779:Immunodiffusion; D009500:Neutralization Tests; D051381:Rats