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  !width="92%"|<center><u>'''Clinical Signs'''</u></center>  
 
  !width="92%"|<center><u>'''Clinical Signs'''</u></center>  
 
  |-
 
  |-
  |<center>'''Class 1'''</center>   
+
  |<center>'''Class I'''</center>   
 
  |'''Asymptomatic or mild disease'''  
 
  |'''Asymptomatic or mild disease'''  
 
*Weight loss, reduced exercise tolerance or an occasional cough may be seen.  
 
*Weight loss, reduced exercise tolerance or an occasional cough may be seen.  
 
*No radiographic signs or laboratory abnormalities.
 
*No radiographic signs or laboratory abnormalities.
 
  |-
 
  |-
  |<center>'''Class 2'''</center>  
+
  |<center>'''Class II'''</center>  
 
  |'''Moderate disease'''
 
  |'''Moderate disease'''
 
*Animal coughs occasionally and shows mild-to-moderate exercise intolerance.  
 
*Animal coughs occasionally and shows mild-to-moderate exercise intolerance.  
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*Anaemia and proteinuria may be present.  
 
*Anaemia and proteinuria may be present.  
 
  |-
 
  |-
  |<center>'''Class 3'''</center>  
+
  |<center>'''Class III'''center>  
 
  |'''Severe disease'''
 
  |'''Severe disease'''
 
*Signs are variable but may include weight loss, exercise intolerance, tachypnoea, dyspnoea, severe/persistent coughing, haemoptysis, syncope, or ascites.
 
*Signs are variable but may include weight loss, exercise intolerance, tachypnoea, dyspnoea, severe/persistent coughing, haemoptysis, syncope, or ascites.
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*Anaemia, thrombocytopenia, and proteinuria are seen.
 
*Anaemia, thrombocytopenia, and proteinuria are seen.
 
  |-
 
  |-
  |<center>'''Class 4'''</center>  
+
  |<center>'''Class IV'''</center>  
 
  |'''Caval syndrome'''
 
  |'''Caval syndrome'''
 
*Sudden onset of collapse, haemoglobinuria, and respiratory distress.  
 
*Sudden onset of collapse, haemoglobinuria, and respiratory distress.  
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