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US 7,273,617 B2Granted
Infectious cDNA clones of porcine reproductive and respiratory syndrome virus and expression vectors thereof
AssigneeProtaTek International, Inc.
InventorsShishan Yuan, Shi-jun Ma
Life of this patent
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Abstract
Infectious cDNA clones of North American Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) are provided. Further provided are cDNA clones comprising genetic mutations. Also provided are vaccines comprising cDNAs, including genetically and immunologically marked vaccines for North American PRRSV.
Claims9
An isolated polynucleotide comprising the nucleotide sequence of SEQ ID NO:
- 1 or a degenerate variant of SEQ ID NO:
- 1.
An isolated polynucleotide comprising a modified nucleotide sequence of SEQ ID NO:1, wherein the modified nucleotide sequence comprises a marker sequence.
Dependencies are inferred from the claim text.