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Table 3 Sensitivity of the Brock Test in 279 badgers from WP that were detected excreting M. bovis for different periods of time

From: Performance of TB immunodiagnostic tests in Eurasian badgers (Meles meles) of different ages and the influence of duration of infection on serological sensitivity

  Duration categorya  
Brock Test 0 1-200 >200 n
Negative 66 11 7 84
Positive 85 51 59 195
Adjusted sensitivityb (95% CI) 57.8% (49.5-65.6) 81.8% (68.2-90.3) 88.4% (76.6-94.7)  
  1. aNumber of days since first culture positive sampling event.
  2. bAdjusted for age of badger at time of Brock Test and relative to culture of M. bovis from faeces, urine, sputum, pus from abscesses, or bite wound swabs.