Epidemiological observations on toxoplasmosis in Niigata Prefecture.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000906:Antibodies / Q000032:analysis; D006386:Hemagglutination Tests; D006801:Humans; D007564:Japan; D008875:Middle Aged; D009790:Occupations; D014123:Toxoplasmosis / Q000453:epidemiology* / Q000276:immunology
D000906:Antibodies