Article
Examination of the selective pressures on a live PRRS vaccine virus.
Archives of virology - 1 Jan 1999
Storgaard T, Oleksiewicz M, Bøtner A
Abstract excerpt
We determined the ORF5 and 7 sequences of 20 pathogenic revertants of a live PRRSV vaccine. The sequence analysis confirmed all 20 isolates to be of vaccine origin. Having established that clonal introduction of American (vaccine) PRRS virus had occurred in Denmark, we could perform analysis of the selective pressure this attenuated virus had experienced during reversion. An analysis of nucleotide mutations...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.
