Rosalía: A severe challenge for Spain’s pig industry

For 2 years already, a new variety of Porcine Reproductive and Respiratory Syndrome (PRRS) has been going around in Spain. It causes more problems than earlier strains of PRRS did. And the end of the “Rosalía” strain is not close yet. For over 30 years, the pig industry has been facing the challenges of PRRS. The virus is known for having various types and varieties, as mutations and recombinations continue to occur. Different variants are stronger or weaker or lead to fewer or more clin