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== Pathogenesis ==
 
== Pathogenesis ==
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Oropharyngeal infection is followed by '''viremia'''. Subsequently there are two distinct syndromes depending on the age of the animal:  
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Oropharyngeal infection is followed by '''viraemia'''. Subsequently there are two distinct syndromes depending on the age of the animal:  
    
#'''Myocarditis''' in puppies aged 3-8 weeks - the virus targets rapidly dividing myocardium leading to sudden death, or '''fading puppy''' syndrome. This is now rare due to widespread passive immunity.  
 
#'''Myocarditis''' in puppies aged 3-8 weeks - the virus targets rapidly dividing myocardium leading to sudden death, or '''fading puppy''' syndrome. This is now rare due to widespread passive immunity.  
 
#'''Enteritis''' in puppies 6 weeks of age. The virus targets intestinal crypts, causing the villi to shorten and the destruction of crypt cells, leading to gray, persistent, foul-smelling diarrhoea or [[Gastroenteritis, Haemorrhagic|hemorrhagic enteritis]]. CPV has a high morbidity but low mortality (10%) rate.
 
#'''Enteritis''' in puppies 6 weeks of age. The virus targets intestinal crypts, causing the villi to shorten and the destruction of crypt cells, leading to gray, persistent, foul-smelling diarrhoea or [[Gastroenteritis, Haemorrhagic|hemorrhagic enteritis]]. CPV has a high morbidity but low mortality (10%) rate.
      
== Diagnosis ==
 
== Diagnosis ==
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