Vacina e processo para sua produçao, amostra biologicamente pura de um vírus ou agente infeccioso, composiçao e processo para proteger um porco contra infecçao viral, anticorpo, processo para tratar um porco sofrendo de uma doença respiratório e de reproduçao dos suínos, kit diagnóstico, polinucleotídio, proteína, ácido polinucleico isolado e processo para cultivar um vírus

摘要

The present invention provides a vaccine which protects pigs from a virus and/or an infectious agent causing a porcine respiratory and reproductive disease, a method of protecting a pig from a disease caused by a virus and/or an infectious agent which causes a respiratory and reproductive disease, a method of producing a vaccine against a virus and/or an infectious agent causing a porcine reproductive and respiratory disease, and a biologically pure sample of a virus and/or infectious agent associated with a porcine respiratory and reproductive disease, particularly the Iowa strain of porcine reproductive and respiratory syndrome virus (PRRSV), and an isolated polynucleotide which is at least 90% homologous with a polynucleotide obtained from the genome of a virus and/or infectious agent which causes a porcine respiratory and reproductive disease.