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IgG, IgM and IgA in the serum of cattle naturally infected with Mycobacterium paratuberculosis.

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1
Department of Epidemiology and Preventive Medicine, University of California, Davis 95616.

Abstract

Serum IgG, IgM and IgA antibody response in 20 cattle naturally infected with Mycobacterium paratuberculosis and in 15 non-infected cattle were measured by enzyme-linked immunosorbent assay. A strong IgG response was detected in 16 (80%) of the infected animals. Diagnostic levels of IgM were detectable in all of the infected animals as well as in 8 (53%) of the non-infected animals. Animals with paratuberculosis had a very weak specific serum IgA response and this appears to be of little value in detection of infection in these animals.

PMID:
3219828
[Indexed for MEDLINE]

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