Genomic characterization of swine caliciviruses representing a new genus of Caliciviridae.

This study reports the molecular characterization of novel caliciviruses, the St-Valérien-like viruses, which were isolated from pig feces in the province of Quebec, Canada between 2005 and 2007. The genomes of St-Valérien-like viruses contain 6409 nucleotides and include two main open reading frames (ORFs). ORF1 encodes the non structural (NS) polyprotein and the major capsid protein (VP1) while ORF2 encodes the putative basic minor capsid protein.

Genetic diversity of porcine Norovirus and Sapovirus: Canada, 2005-2007.

Noroviruses and sapoviruses are members of the family Caliciviridae and emerging enteric pathogens of humans and animals. Since their discovery and characterization in swine, relatively few strains have been described in detail. In order to investigate their genetic diversity, a total of 266 fecal samples collected in the province of Quebec, Canada, between 2005 and 2007 were screened for the presence of caliciviruses by RT-PCR using broadly reactive primers.