S segment variability during the two first years of the spread of Schmallenberg virus

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Abstract

A large sheep flock screened over a two-year period showed active spreading of Schmallenberg virus (SBV) during the summers of 2011 and 2012. Transplacental infections were observed during the two associated lambing periods (the winters of 2012 and 2013). Analysis of small (S) segment sequences of 38 SBV-positive samples, collected during periods of viral spreading and lambing revealed intra-herd sequences diversity and subconsensus variability occurring after transplacental infections. In comparison with the nucleoprotein (N), which appeared to be conserved, the non-structural protein (NSs) showed the highest level of variability at the time of viral emergence and over the two-year analysis period.
Original languageEnglish
Pages (from-to)1353-1358
Number of pages6
JournalArchives of virology
Volume161
Publication statusPublished - 2016

Keywords

  • bunyaviridae
  • S segment
  • nucleoprotein
  • NSs
  • sub-consensus variability

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