Difference between revisions of "Porcine Parvovirus"

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====Antigenicity====
 
====Antigenicity====
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*Inactivated vaccine (UK) or live attenuated (USA)
 
*Inactivated vaccine (UK) or live attenuated (USA)
 
*Infected piglets should be culled
 
*Infected piglets should be culled
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[[Category:Parvoviridae]][[Category:Pig]]

Revision as of 11:21, 23 May 2010



Antigenicity

  • Single serotype

Hosts

  • Pigs

Pathogenesis

  • Principal viral cause of SMEDI syndrome: Stillbirths, Mummification, Embryonic Deaths, and Infertility
  • Replicates in gastrointestinal epithelium followed by viremia
  • Often no clinical signs in breeding and growing stock
  • Transplacental infection occurs in early pregnancy, with some (but not all) surviving piglets living as carriers

Epidemiology

  • About 50% of UK pigs are antibody-positive
  • Transfer is orofecal or via fomites
  • Outbreaks occur as herd is developing immunity
  • Congenitally infected piglets act as herd reservoir

Diagnosis

  • Immunostaining of fetal tissues
  • Virus isolation in cell culture
  • HA on feces
  • Rising antibody titres in paired serum sample by HAI

Control

  • Inactivated vaccine (UK) or live attenuated (USA)
  • Infected piglets should be culled