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Table 1 Parameters used in the pathology scoring system

From: A proof of concept study to assess the potential of PCR testing to detect natural Mycobacterium bovis infection in South American camelids

 

Value assigned

Parameter

0

1

2

3

Lung

No lesions

A few scattered foci

More extensive areas of caseation but not involving whole lung lobes

Severe and extensive caseation

Lungs affected

Neither lung affected

One lung affected

Both lungs affected

 

Thoracic cavity

Pleurisy absent

Pleurisy present

  

Liver

No lesions

Minimal lesions

More extensive lesions

 

Mesenteric lymph nodes

No lesions

Lesions present

  

Additional tissues affected

No additional tissues

1 additional tissue

2 additional tissues

3 or more additional tissues