Effective vaccination against European strains of porcine reproductive and respiratory syndrome (PRRS) virus prior to weaning
US11090376B2 · kind B2 · utility
1Cited by
44References
7Claims
0Family size
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Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Apr 29, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2770/10064
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides modified live European PRRS viruses (whether or not recombinant) that have been at all times cultured, maintained, and/or attenuated on non-simian cells, typically porcine cells, wherein such cells express a porcine CD163 receptor, and whereinby vaccines prepared from such viruses are safe and efficacious, and permit the pre-weaning single dose vaccination of swine, typically as early as Day 1 of life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.