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| Two canine viruses have been identified, these are: | | Two canine viruses have been identified, these are: |
− | *Canine Parvovirus 1 ('''CPV1'''): avirulent and ubiquitous in the canine populationand | + | *Canine Parvovirus 1 ('''CPV1'''): avirulent and ubiquitous in the canine population |
− | *Canine Parvovirus 2 ('''CPV2'''): a new virus that emerged in the late 1970's. Antigenic variants do naturally occur. | + | *Canine Parvovirus 2 ('''CPV2'''): a new virus that emerged in the late 1970's. Antigenic variants do naturally occur. |
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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: | + | Oropharyngeal infection is followed by '''viraemia'''. Subsequently there are two distinct syndromes depending on the age of the animal: |
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| #'''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. |
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| == Diagnosis == | | == Diagnosis == |
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| {{Learning | | {{Learning |
− | |Vetstream = [https://www.vetstream.com/canis/Content/Bug/bug00213.asp, Canine parvovirus] | + | |Vetstream = [https://www.vetstream.com/canis/Content/Bug/bug00213.asp, Canine parvovirus]<br> |
| + | [https://www.vetstream.com/canis/Content/Disease/dis01005.asp, CPV 1 - disease]<br>[https://www.vetstream.com/canis/Content/Disease/dis01007.asp, CPV 2 - disease) |
| |full text = [http://www.cabi.org/cabdirect/FullTextPDF/2009/20093115250.pdf '''Canine parvovirus: an emerging, re-emerging, significant pathogen of dogs.''' Kapil, S.; The North American Veterinary Conference, Gainesville, USA, Small animal and exotics. Proceedings of the North American Veterinary Conference, Orlando, Florida, USA, 17-21 January, 2009, 2009, pp 650-651, 3 ref.] | | |full text = [http://www.cabi.org/cabdirect/FullTextPDF/2009/20093115250.pdf '''Canine parvovirus: an emerging, re-emerging, significant pathogen of dogs.''' Kapil, S.; The North American Veterinary Conference, Gainesville, USA, Small animal and exotics. Proceedings of the North American Veterinary Conference, Orlando, Florida, USA, 17-21 January, 2009, 2009, pp 650-651, 3 ref.] |
| }} | | }} |