Porcine reproductive and respiratory syndrome virus cDNA clone and uses thereof

The present invention relates to a method for preparing cDNA infectious clones based on the genome of an attenuated Porcine Reproductive and Respiratory Syndrome virus (PRRSV) and uses thereof for preparing efficacious and safety-enhanced vaccines against PRRSV. The invention further comprises an in...

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Bibliographische Detailangaben
Hauptverfasser: Sitjà Arnau, Marta, Gibert Pérez, Xavier, Martín García, Susana, Fenech Martínez, Maria Mar, Elena Fito, Santiago Francisco
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention relates to a method for preparing cDNA infectious clones based on the genome of an attenuated Porcine Reproductive and Respiratory Syndrome virus (PRRSV) and uses thereof for preparing efficacious and safety-enhanced vaccines against PRRSV. The invention further comprises an infectious cDNA clone obtainable by such method. The invention further provides an attenuated modified PRRSV, and immunogenic compositions and vaccines comprising that attenuated PRRSV. The present invention further provides the attenuated PRRSV for use in the prophylaxis and/or the treatment of PRRSV infections, and the attenuated PRRSV for use as vaccine or medicament in the prophylaxis and/or the treatment of PRRSV infections.