Presence of porcine parvovirus in sera from pigs is independent of antibody titers

Berl Munch Tierarztl Wochenschr. 2011 May-Jun;124(5-6):242-6.

Abstract

Porcine parvovirus (PPV) is a widespread DNA virus that causes reproductive failure in swine. The aim of the present study was to investigate the presence of PPV in sera of nursery piglets (healthy n = 191 and wasting n = 132) and regularly vaccinated sows (with different parity rank [PR] n = 129), collected from different herds. Altogether, 452 animals were sampled in 27 herds owned by five companies. All sera were analyzed for the presence of PPV DNA by nested-PCR. The samples from sows were in addition tested for the presence of antibodies by Hemagglutination Inhibition (HI). PPV DNA was detected in healthy piglets (15.7%), wasting piglets (18.2%) and sows (17.8%). 25 herds had at least one positive sample and four companies had positive animals. The serology revealed that 84.7% of the sows had detectable antibodies and the fourth PR sows had the highest mean PPV antibody titers. Thirteen sows (19.1%) were found to be positive for DNA detection in the presence of high levels of antibody titers (> 512). This finding indicates that PPV DNA can be detected in different swine production categories irrespective of antibody titers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies, Viral / blood*
  • DNA, Viral / blood*
  • Female
  • Male
  • Parity
  • Parvoviridae Infections / blood
  • Parvoviridae Infections / immunology
  • Parvoviridae Infections / veterinary*
  • Parvovirus, Porcine / genetics
  • Parvovirus, Porcine / immunology
  • Parvovirus, Porcine / isolation & purification*
  • Pregnancy
  • Pregnancy Complications, Infectious / blood
  • Pregnancy Complications, Infectious / veterinary*
  • Pregnancy Complications, Infectious / virology
  • Swine
  • Swine Diseases / blood*
  • Swine Diseases / immunology
  • Swine Diseases / virology

Substances

  • Antibodies, Viral
  • DNA, Viral