Genetic diversity of PRRSV 1 in Central Eastern Europe in 1994-2014: origin and evolution of the virus in the region

Scientific Reports
Gyula BalkaTomasz Stadejek

Abstract

More than 20 years after the first outbreaks, the phylogenetic picture of PRRSV is still incomplete and full of gaps, especially in regards of PRRSV 1. Due to the exceptional diversity observed at the eastern borders of Europe and the low number of available sequences from Central Eastern European countries, the authors collected and analyzed both recent as well as already submitted sequences comparing them to a large backbone set of available ORF5 sequences representing the full spectrum of PRRSV 1 Subtype 1 diversity to conduct a systematic phylogenetic analysis and reclassification elucidating the diversity of the virus in these countries. Moreover, further analyses of the EUROSTAT data regarding the live pig movement trends revealed their influence of virus diversity and evolution. The results indicate that besides the effect of local, isolated divergent evolution and the use of modified live vaccines, the most important factor influencing a given country's virus diversity is the transboundary movement of live, infected animals.

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Citations

Aug 15, 2018·Transboundary and Emerging Diseases·Lilla DénesGyula Balka
Dec 18, 2019·Acta Veterinaria Hungarica·István SzabóÁdám Bálint
Jan 6, 2021·Porcine Health Management·Tanja OpriessnigPatrick G Halbur
Nov 7, 2020·Scientific Reports·Péter Márton SzabóÁdám Bálint
Apr 8, 2020·Journal of Veterinary Research·Lapo NannucciCarolina Pugliese

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Methods Mentioned

BETA
PCR

Software Mentioned

COMECON
Biomatters
Geneious
EUROSTAT
ClustalW
MrBayes

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