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Table 1 Cross-classified positive (+) and negative (−) results of two serum ELISAs and one fecal PCR in sub-populations 1 to 4 for sub-clinically infected 2- to 3-year-old French Causse du Lot sheep

From: Estimation of the sensitivity and specificity of two serum ELISAs and one fecal qPCR for diagnosis of paratuberculosis in sub-clinically infected young-adult French sheep using latent class Bayesian modeling

ELISA

A

ELISA

B

Fecal

qPCR

Subpop.

1

Subpop.

2

Subpop.

3

Subpop.

4

Total

+

+

+

0

2

5(4)

8 (5)

15 (11)

+

+

9 (7)

11 (7)

14 (14)

10 (6)

44 (34)

+

+

0

1

2

2

5 (5)

+

6 (7)

5 (8)

9 (6)

1 (6)

21 (27)

+

+

1

3

6 (4)

1

11 (9)

+

9 (5)

6 (4)

7 (6)

1

23 (16)

+

0

4(3)

37 (17)

33 (28)

74 (48)

262 (267)

267 (271)

367 (394)

108 (115)

1004 (1047)

 

Total

 

287

299

447

164

1197

  1. Doubtful ELISA and fecal qPCR Ct ≤ 42 results were treated as positive. When doubtful ELISA and fecal qPCR 40 ≤ Ct ≤ 42 results were treated as negative, counts are shown in brackets