A molecular clock dates the common ancestor of European-type porcine reproductive and respiratory syndrome virus at more than 10 years before the emergence of disease.

Journal article

The disease caused by porcine reproductive and respiratory syndrome virus (PRRSV) emerged independently and almost simultaneously in Europe (1990) and North America (1987). The original reservoir of the virus and the date it entered the pig populations is not known. In this study, we demonstrate an accurate molecular clock for the European PRRSV ORF 3 gene, place the root in the genealogy, estimate the rate of nucleotide substitution, and date the most recent common viral ancestor of the data...

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Authors: Forsberg, R; Oleksiewicz, M; Petersen, A; Hein, J; Bøtner, A

• Publication status: Published
• Journal: Virology
• Volume: 289
• Issue: 2
• Pages: 174-179
• Publication date: 2001-10-01
• DOI: 10.1006/viro.2001.1102
• EISSN: 1096-0341
• ISSN: 0042-6822
• Language: English
• Keywords: Animals; Molecular Sequence Data; Open Reading Frames; Epidemiology, Molecular; Porcine Reproductive and Respiratory Syndrome; Phylogeny; Porcine respiratory and reproductive syndrome virus; Europe; Swine; RNA, Viral