PRRS virus variant, European PRRS virus cDNA clone, and uses thereof
First Claim
1. A DNA molecule which encodes a genotype I PRRS virus and which is capable of producing live virus when transfected into cells, wherein said molecule comprises a nucleic acid sequence having at least 99.1% sequence identity with the nucleic acid sequence of SEQ ID NO:
- 48, wherein maximally 0.8% of the differences in sequence identity are located within the first 110 nucleotides of the 5′
end of SEQ ID NO;
48 and within the the last 97 nucleotides of the 3′
end of SEQ ID NO;
48 and wherein maximally 0.1% of the differences in sequence identity are located in the remaining nucleotides of SEQ ID NO;
48.
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Abstract
The present invention belongs to the field of animal health and provides means to study Porcine Reproductive and Respiratory Syndrome (PRRS), a viral disease affecting swine, and for the development of vaccines, therapeutics and diagnostics for the prophylaxis, treatment and diagnosis of PRRS. In a first consideration, the invention relates to a new PRRS virus variant, and, in a second consideration, to a nucleic acid sequence which comprises the genome of an infectious genotype I (EU) PRRS virus clone. Based on this, new PRRS vaccine candidates with improved properties are provided.
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11 Claims
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1. A DNA molecule which encodes a genotype I PRRS virus and which is capable of producing live virus when transfected into cells, wherein said molecule comprises a nucleic acid sequence having at least 99.1% sequence identity with the nucleic acid sequence of SEQ ID NO:
- 48, wherein maximally 0.8% of the differences in sequence identity are located within the first 110 nucleotides of the 5′
end of SEQ ID NO;
48 and within the the last 97 nucleotides of the 3′
end of SEQ ID NO;
48 and wherein maximally 0.1% of the differences in sequence identity are located in the remaining nucleotides of SEQ ID NO;
48. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 48, wherein maximally 0.8% of the differences in sequence identity are located within the first 110 nucleotides of the 5′
Specification