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Table 7 Number of lambs and kids tested for E. ruminantium (ER) infection by pCS20 PCR and MAP1-B ELISA at the various age levels and the values of kappa statistic

From: Longitudinal monitoring of Ehrlichia ruminantium infection in Gambian lambs and kids by pCS20 PCR and MAP1-B ELISA

Age Group pCS20 PCR MAP1-B ELISA Kappa
   ER positive ER negative  
0 – 10 days ER positive 11(a) 1(b) 0.015
  ER negative 44(c) 6(d)  
11 – 21 days ER positive 3 1 -0.015
  ER negative 46 8  
22 – 49 days ER positive 17 6 0.068
  ER negative 30 16  
50 – 77 days ER positive 6 8 -0.019
  ER negative 24 19  
78 – 98 days ER positive 7 16 0.223
  ER negative 3 28  
99 – 126 days ER positive 4 12 0.035
  ER negative 3 11  
127 – 162 days ER positive 3 21 0.009
  ER negative 4 30