TABLE 4

Comparison of IgG antibody responses in paired serum and milk samples in relation to skin test status in March 2014

Samplea and skin test status (no. of samples)% Antibody positivebTotal % positivec
MPB70 peptidePPD-BMPB70MPB83CFP10ESAT6
Serum
    SICTT positive (12)100100100100 100 75.0 100
    SICTT negative (263)90.995.189.780.2 55.5 d 10.7 e 95.4
    Total (275)91.395.390.281.157.514.295.6
Milk
    SICTT positive (12)100100100100 100 83.3 100
    SICTT negative (263)93.293.992.089.0 75.7 d 16.0 e 95.1
    Total (275)93.594.292.489.576.718.995.3
  • a Paired serum and milk samples were taken on 18 March 2014.

  • b Values showing statistically significant differences between skin test-positive and -negative animals are in bold.

  • c Positive, antibodies to two or more antigens.

  • d P < 0.05.

  • e P < 0.0001.