European vaccine strains of the Porcine Reproductive Respiratory

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Virus or component thereof

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435 71, 435236, 435239, 5303883, 5303894, C12N 702, A61K 39155

Patent

active

056982038

ABSTRACT:
The present invention is concerned with European strains of the Porcine Reproductive Respiratory Syndrome (PRRS) virus, which are attenuated, and show a characteristic reaction pattern with two monoclonal antibodies against wild-type PRRSV.
The invention also relates to vaccines for the protection of pigs against PRRS, to monoclonal antibodies reactive with PRRS virus and monoclonal antibodies specifically non-reactive with the attenuated strains.

REFERENCES:
J.M.A. Pol et al., The Veterinary Quaterly, 13:3:137-143, 1991.
G. Terpstra et al., The Veterinary Quaterly, 13:3:131-136, 1991.
E. Nelson et al., "Differentiation of US and European isolates of porcine reproductive and resiratory virus by monoclonal antibodies," J. Clin. Micro., 31:12:3184-3189, 1993.
H. Mardassi et al., "Identifications of major differences in the nucleocapsid proteins of Quebec strain and European strains of PRRSV," J. Gen. Virol., 75:3:681-685, 1994.
G. Wensvoort et al., "Antigenic comparison of Lelystad virus and swine infertility and respiratory syndrome firus," J. Vet. Diagn. Invest., 4:134-138, 1992.
J. Meulenberg et al., "Lelystad virus the causative agent of porcine epidemic abortion and respiratory syndrome" Virology, 192:62-72, 1993.
Paul, WE Fundamental Immunology p. 242 Third ED. 1993.

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