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  • Title: Serological reactivity to Mycobacterium bovis protein antigens in cattle.
    Author: Fifis T, Costopoulos C, Corner LA, Wood PR.
    Journal: Vet Microbiol; 1992 Mar; 30(4):343-54. PubMed ID: 1585626.
    Abstract:
    The serological response to 12 purified Mycobacterium bovis antigens were examined in an ELISA assay. These antigens included the majority of M. bovis protein antigens described to date and in most cases they were very similar to the M. tuberculosis antigens of the same molecular mass. The purified antigens were tested against sera from M. bovis infected cattle, M. bovis culture-negative cattle from infected herds and animals infected with related microorganisms, mainly other mycobacterial species. All the antigens gave strong reactions with at least some sera from the M. bovis infected group and showed cross-reactivity with some of the sera from the other two groups. The antigen with the highest specificity reacted strongly with only 60% of the M. bovis infected sera. Antigens that reacted with most or all of the M. bovis infected sera also gave the highest cross-reactivity with sera from the other two groups. These results indicate that a serological test based on any one or a combination of these antigens, without removal of the cross-reacting epitopes, would be unsatisfactory.
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