title: California encephalitis--an endemic puzzle in Ohio.
mesh_terms: D000293:Adolescent; D000328:Adult; D000330:Aedes; D000368:Aged; D000818:Animals; D001103:Arboviruses / Q000276:immunology; D001717:Birds / Q000276:immunology; D002140:California; D002493:Central Nervous System Diseases / Q000453:epidemiology / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D004660:Encephalitis / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology; D004668:Encephalitis Viruses / Q000276:immunology / Q000302:isolation & purification*; D004674:Encephalitis, St. Louis / Q000453:epidemiology; D004813:Epidemiology; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007223:Infant; D008297:Male; D051379:Mice; D008875:Middle Aged; D009820:Ohio; D012589:Sciuridae / Q000276:immunology; D012621:Seasons