title: An apparent outbreak of rickettsial illness in Costa Rica, 1974.
abstract: A focal outbreak of highly fatal disease occurred in eastern Costa Rica in 1974. No rickettsial spotted fevers have previously been reported in Costa Rica. Nevertheless, the available evidence points to an unidentified rickettsial pathogen, probably of the spotted fever group, as the agent responsible for this outbreak.
mesh_terms: D000293:Adolescent; D000906:Antibodies / Q000032:analysis; D000941:Antigens / Q000032:analysis; D001096:Arachnid Vectors; D002648:Child; D003168:Complement Fixation Tests; D003364:Costa Rica; D004196:Disease Outbreaks; D006801:Humans; D008297:Male; D008875:Middle Aged; D012282:Rickettsia Infections / Q000276:immunology / Q000401:mortality*; D012284:Rickettsia rickettsii / Q000276:immunology; D012286:Rickettsia typhi / Q000276:immunology; D013987:Ticks / Q000382:microbiology
chemical_list: D000906:Antibodies; D000941:Antigens