abstract |
The present invention belongs to the field of animal health and is a means for studying porcine reproductive and respiratory syndrome (PRRS), a viral disease affecting pigs, and the development of vaccines, therapeutics and diagnostic methods for the prevention, treatment and diagnosis of PRRS provides a means for In a first consideration, the present invention relates to novel PRRS virus variants, and in a second consideration to a nucleic acid sequence comprising the genome of an infectious genotype I (EU) PRRS virus clone. Based on this, novel PRRS vaccine candidates with improved properties are provided. |