Co-Infection of PRRSV-1 and PRRSV-2 in a Single Sow: Complete Genome Characterization Reveals a Novel CH-1a-Backbone Recombinant with an NADC30-Derived Nsp2 in China
Porcine reproductive and respiratory syndrome virus (PRRSV) has the characteristics of a fast evolution rate and high genetic heterogeneity. PRRSV-1 and PRRSV-2 are co-circulating, and the threat they pose to the health of pigs worldwide continues to rise. In this study, two PRRSV strains with significantly different g...