Difference between revisions of "Canine Parvovirus"

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*Thorough disinfection after disease or removing dogs from that area for at least 9 months.
 
*Thorough disinfection after disease or removing dogs from that area for at least 9 months.
  
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==Literature Search==
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[[File:CABI logo.jpg|left|90px]]
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Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
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<br><br><br>
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[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 Article''']
  
  
 
[[Category:Parvoviridae]][[Category:Dog]]
 
[[Category:Parvoviridae]][[Category:Dog]]
 
[[Category:To_Do_-_Clinical/Viruses]]
 
[[Category:To_Do_-_Clinical/Viruses]]

Revision as of 21:55, 8 November 2010

Introduction

Until 1978 Parvovirus enteritis was totally unknown in dogs - it was first seen in dogs in Australia where it appeared very similar but perhaps slightly worse than the disease seen in the cat. Research revealed a new and distinct disease, but the virus is very closely related to the feline virus; viral DNA is 98% homologous to the feline virus. Clinically, the virus causes enteritis mainly affecting the small intestine in young dogs over 6 weeks old and myocarditis in puppies. Vaccines are very effective, but the virus is hardy and survives for a protracted time in the environment.

Antigenicity

  • 2 Canine viruses have been identified:
    • 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.

Signalment

The virus predominantly affects dogs, but CPV 2a/2b can cause clinical disease in cats.

Pathogenesis

Oropharyngeal infection is followed by viremia. Subsequently there are 2 distinct syndromes:

  1. 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.
  2. Enteritis in puppies >6 weeks of age. The virus targets intestinal crypts, causing the villi to shorten and the destruction of cypt cells, leading to gray, persistent, foul-smelling diarrhoea or hemorrhagic enteritis. CPV has a high morbidity but low mortality (10%) rate.

Epidemiology

Transmission is by the Orofaecal route. The host range is controlled by only a few amino acids

Diagnosis

Prevention and Control

  • Vaccination, usually given in combination with distemper and hepatitis. With first vaccination at 8-10 weeks and the second vaccination two weeks after the first, 10-12 weeks. Earlier vaccinations can be given where breeders are known to have CPV on the premises.
  • Thorough disinfection after disease or removing dogs from that area for at least 9 months.

Literature Search

CABI logo.jpg


Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).


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 Article