ArticleTransboundary and emerging diseases2025
A Spanish Porcine Reproductive and Respiratory Syndrome Virus 1 Strain Is Highly Virulent in Pigs Under Experimental Conditions.
Article in Transboundary and emerging diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Pig productive performance parameters and costs in Spain: evolution from 2015 to 2024.Porcine health management · 2026Article
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12 authors.
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Abstract
Porcine reproductive and respiratory syndrome (PRRS) remains one of the most important infectious diseases affecting the global pig industry. The emergence of highly pathogenic PRRS virus 1 (PRRSV-1) strains, first detected in northeastern Spain in 2020, poses new challenges for effective disease control. Despite their severe impact under field conditions, a comprehensive experimental characterization of these virulent strains has been lacking. In this study, we analyzed the genetic characteristics of the Lleida 029_22 strain, collected during a severe PRRSV-1 outbreak, and evaluated its pathogenicity in pigs. Phylogenetic analysis revealed that the Lleida 029_22 strain belongs to a new clade describing multiple strains isolated during a PRRSV-1 Rosalia-related outbreak, with the highly pathogenic Italian strain PR40 identified as a common ancestor.
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