Serum immunoglobulin concentrations in cattle naturally infected with bovine leukemia virus

Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B
M H GateiR C Daniel

Abstract

In order to elucidate whether natural infection of BLV in cattle might induce humoral immunological responses, changes in IgG1, IgG2, and IgM concentrations in the sera of infected cattle were determined. Twelve BLV-infected cattle were used. Cattle of different breeds were classified serologically and haematologically into BLV + PL+, BLV + PL- and BLV-free groups. Ig concentrations in the sera of the three groups were quantitated using a commercial single radial immunodiffusion assay. The findings were compared to those of BLV-free cattle. The serum IgM concentrations were significantly lower in cattle with PL (P less than 0.001) than in BVL + PL- and BLV-free cattle. The IgM concentrations tended to be lower in BLV+ PL- than those of BVL-free cattle. There were no significant differences in IgG1 and IgG2 serum concentrations between the three experimental cattle groups. IgG1 was the predominant subtype in the sera of all cattle groups.

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Citations

Oct 1, 1993·Immunology and Cell Biology·R C DanielM F Lavin

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