Cervid herpesvirus 2 causes respiratory and fetal infections in semidomesticated reindeer

J Clin Microbiol. 2009 May;47(5):1309-13. doi: 10.1128/JCM.02416-08. Epub 2009 Mar 11.

Abstract

Members of the viral subfamily Alphaherpesvirinae establish latency from which they can be reactivated. Bovine herpesvirus 1 causes infectious bovine rhinotracheitis and infectious pustular vulvovaginitis in cattle, as well as abortion and weak calves. Serological evidence of alphaherpesvirus infection has been reported for wild and semidomesticated reindeer (Rangifer tarandus tarandus) in Norway. To address the possibility that reindeer alphaherpesvirus (cervid herpesvirus 2 [CvHV-2]) infection might affect the respiratory system and in part explain the relatively high mortality of reindeer calves during their first year, tissue samples were obtained from reindeer and reindeer fetuses at slaughterhouses in Finnmark County, Norway. A nested pan-alphaherpesvirus PCR amplification targeting the highly conserved UL27 gene (encoding glycoprotein B) was used. Sequencing of amplicons revealed the presence of CvHV-2 DNA. The detection of CvHV-2 DNA in trigeminal ganglia (27 of 143 samples), nasal swabs (5 of 75 samples), and fetal tissues (12 of 48 samples) indicates that CvHV-2 infection is endemic in this reindeer population. Moreover, the virus is transmitted horizontally by the respiratory route, establishing latency in the trigeminal ganglion, and vertically to the fetus through the placenta. Further studies should focus on the reproductive impact of CvHV-2 infection in reindeer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alphaherpesvirinae / isolation & purification*
  • Animals
  • Base Sequence
  • DNA, Viral / chemistry
  • DNA, Viral / genetics
  • Endemic Diseases
  • Herpesviridae Infections / epidemiology
  • Herpesviridae Infections / mortality
  • Herpesviridae Infections / veterinary*
  • Herpesviridae Infections / virology
  • Molecular Sequence Data
  • Norway / epidemiology
  • Polymerase Chain Reaction / methods
  • Reindeer / virology*
  • Respiratory Tract Infections / epidemiology
  • Respiratory Tract Infections / mortality
  • Respiratory Tract Infections / veterinary*
  • Respiratory Tract Infections / virology
  • Sequence Alignment
  • Sequence Analysis, DNA
  • Trigeminal Ganglion / virology

Substances

  • DNA, Viral

Associated data

  • GENBANK/FJ409045
  • GENBANK/FJ409046
  • GENBANK/FJ409047
  • GENBANK/FJ409048
  • GENBANK/FJ409049
  • GENBANK/FJ409050
  • GENBANK/FJ409051
  • GENBANK/FJ409052
  • GENBANK/FJ409053
  • GENBANK/FJ409054
  • GENBANK/FJ409055
  • GENBANK/FJ409056
  • GENBANK/FJ409057
  • GENBANK/FJ409058
  • GENBANK/FJ409059