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Percentage of cattle that responded positively to antigens tested. The dashed vertical line indicates the positive cutoff value of 40 %. PPDA is purified protein derivative from M. avium, PPDB is purified protein derivative from M. tuberculosis, and SEB is staphylococcal enterotoxin B. Peptide pools giving positive responses are pool 1 (Mb1438c/Rv1403c), pools 6 and 8 (Mb1440c/Rv1405c), pool 25 (FadD21) and pool 32 (FadE24).
