Phylogenetic analysis of Polish isolates of swine vesicular disease virus [SVDV]

The aim of this studies was the genetic analysis of Polish SVDV isolates from 1972-73. The direct nucleotide sequencing technique of PCR products from the 1D (VP1) structural polipeptyde coding region was applied. The genetic differences between Polish isolates and other European and Japanese ones from 1966-1994 were determined by comparing their nucleotide sequences. No considerable genetic divergences were found between Polish isolates and the others in 1972-1981 . This suggests a close relation and common origin of all isolates belonging to genogroup II. The considerable genetic differences (10-15%) were found between Polish strains from 1972-73 and West European isolates from 1991/92 (genogroup III) and 1993/94 (genogroup IV). These results indicated that distribution of isolates within these genogroups appears to be more related to the year of their collection than to their geographical origin. The obtained results can be important information for epidemiological studies of SVD in Europe.