Prevalence of Yersinia antibodies in blood donors.
Agglutinins titers against Y. enterocolitica 0:3, 0:5, 0:9 and Y. pseudotuberculosis I were determined by the microagglutination method in 777 blood donor sera. Titers of < or = 1/10 were observed in 93.5% of the subjects for Y. enterocolitica 0:3, in 87.8% for Y. enterocolitica 0:9 and in 95.1% for Y. enterocolitica 0:5 and for Y. pseudotuberculosis I. Low level titers (1/10 - 1/20) were found in 11.4% to 23.1%. Titers of > or = 1/40 were observed in 1.7% for Y. enterocolitica 0:3, in 1.4% for Y. enterocolitica 0:5, in 5.1% for Y. enterocolitica 0:9 and in 1.2% for Y. pseudotuberculosis I. Titers of > or = 1/80 were seen in 0.2% for Y. enterocolitica 0:3, in 0.1% for Y. enterocolitica 0:5 and in 1.3% for Y. enterocolitica 0:9. Only in one donor's serum was a titer of 1/160 against Y. enterocolitica 0:9 found. The upper limit of normal titer at 15% cutoff level against Yersinia antigens, found in blood donor sera by the microagglutination test, was 1/10.
Infectious Diseases Department, University of Turin, Italy.
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D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood*; D001782:Blood Donors; D005260:Female; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D015009:Yersinia Infections / Q000175:diagnosis / Q000453:epidemiology; D015008:Yersinia enterocolitica / Q000276:immunology*; D015011:Yersinia pseudotuberculosis / Q000276:immunology*; D015012:Yersinia pseudotuberculosis Infections / Q000175:diagnosis / Q000453:epidemiology
D000907:Antibodies, Bacterial