METHOD FOR PRODUCING A SUBUNIT VACCINE AGAINST THE CANINE PARVOVIRUS AND OTHER RELATED VIRUSES

摘要

The invention relates to a method for producing a subunit vaccine against canine parvovirus (CPV) and other related viruses (FPLV and MEV). The method is comprised of a first step to obtain a recombinant protein VP2 of CPV using the replication of a recombinant baculovirus, wherein the gene corresponding to the VP2 had been previously introduced in cells of a permissive host. The protein VP2 obtained in this invention has the capacity of forming empty chimeric capsides with high immunogenicity so that they can be formulated into vaccines for protecting animals against infection caused by CPV, FPLV and MEV. Additionnaly they may be chemically or genetically engineered in order to incorporate epitopes corresponding to other viral proteins and they may be used in the formulation of polyvalent vaccines. The recombinant baculovirus AcMNPV.pCPVEx17 expresses the protein VP2 of the virus CPV in conditions which enable it to form pseudo-viral capsides and has been deposited at the ECACC. Said vaccine finds application in the veterinary field.