| Literature DB >> 6418039 |
Y Yokomizo, R S Merkal, P A Lyle.
Abstract
An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of antibodies to Mycobacterium paratuberculosis in the sera of cattle. This assay was designed to minimize the nonspecific ELISA reactions caused by immunoglobulin (Ig)M by measuring only IgG1 antibodies against a protoplasmic antigen from the organism. The ELISA detected IgG1 antibodies in the sera of 58% of cattle with positive fecal cultures for M paratuberculosis compared with detection of 45% of culture-positive animals with an immunodiffusion test. In addition to its sensitivity, the ELISA apparently is highly specific because only 4% of the sera from fecal culture-negative animals gave a false-positive result.Entities:
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Year: 1983 PMID: 6418039
Source DB: PubMed Journal: Am J Vet Res ISSN: 0002-9645 Impact factor: 1.156