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Evaluation of an enzyme-linked immunosorbent assay for detection of Eperythrozoon suis antibodies in swine

1992; American Veterinary Medical Association; Volume: 53; Issue: 3 Linguagem: Inglês

10.2460/ajvr.1992.53.3.352

1943-5681

F. S. Hsu, M. C. Liu, Shu-Fen Chou, James F. Zachary, Amanda R. Smith,

Toxin Mechanisms and Immunotoxins

Summary An elisa was developed and tested to detect antibodies to Eperythrozoon suis in swine. Results were compared with those of the indirect hemagglutination ( iha ) test. Antigen isolated from swine heavily infected with E suis was used for both tests. Comparison of the elisa with the iha test revealed a significant ( P < 0.001) correlation between results. Of 114 samples obtained from 9 swine infected with E suis, 87.7% were seropositive (titer ≥ 200) via the elisa , and 80.7% were seropositive (titer ≥ 20) via the iha test. The sensitivity of the elisa was greater than that of the iha test. All blood samples obtained from specific-pathogen-free swine tested negative for E suis antibody. Cross-reactions were not observed between E suis antigen and antisera against various swine and cattle disease agents using elisa . We concluded that the elisa may be used for rapid and effective diagnosis of infection with E suis in swine.