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Table 11 Classification scheme of MAP status from ELISA and fPCR results in a study looking at changes in apparent prevalence of MAP infection in a NZ pastoral dairy herd over 4 years of intervention

From: Control of Mycobacterium avium subsp. paratuberculosis infection on a New Zealand pastoral dairy farm

Test

MAP status

ELISA

Paralisa™

IDEXXa

 

Johnina

PPAa

Ag1Del1a

  

<  50 EU

<  50 EU

<  50 EU

Not Detected

Not Detected

50–100 EU in any test

Low

Low

101–150 EU in any test

Moderate

Moderate

>  150 EU in any test

High

High

fPCR

 <  1 × 103 genomes / mL

Not Detected

 ≥ 1 × 103 - < 1 × 104 genomes / mL

Moderate

 ≥ 1 × 104 genomes / mL

High

  1. aELISA results were interpreted in parallel
  2. bfPCR results were interpreted in series with ELISA results