Abstract: The present invention relates to a new delivery system and method for producing same. The delivery system is a biphasic system of delivering charged macromolecules and comprises of a negatively charged hydrophobic organic phase and a positively charged inorganic phase. The organic phase and the inorganic phase entrapping added macromolecules. The macromolecules are entrapped by electrostatic bonds between the organic phase, the inorganic phase and the macromolecules. The method for producing the delivery system comprises the steps of contacting together and mixing a negatively charged organic phase, a charged macro-molecule and a positively charged inorganic phase.

Abstract: The present invention relates to a new delivery system and method for producing same. The delivery system is a biphasic system of delivering charged macromolecules and comprises a negatively charged hydrophobic organic phase and a positively charged inorganic phase. The organic phase and the inorganic phase entrapping added macromolecules. The macromolecules are entrapped by electrostatic bonds between the organic phase, the inorganic phase and the macromolecules. The method for producing the delivery system comprises the steps of contacting together and mixing a negatively charged organic phase, a charged macromolecule and positively charged inorganic phase.

Abstract: The present invention relates to a DNA plasmid vaccine for immunization of animals against BVDV which comprises at least a mammalian expression vector having a DNA sequence encoding at least one BVDV immunogenic protein or fragment thereof which is selected from the group consisting of BVDV major glycoprotein gp53/E2, p20 (Npro), p14/C, gp48/E0, gp25/E1 and p80/NS3 proteins, the immunogenic protein is operably linked downstream from a suitable promoter for its expression, whereby inducing a BVDV-specific antibody responses.

Abstract: The present invention relates to a serum for passive immunization of fish against furunculosis caused by Aeromonas salmonicida, which comprises antibodies against A. salmonicida isolated from fish naturally infected with furunculosis in an intraperitoneal injectable carrier. There is also provided a method for preparing a serum for passive immunization of fish against furunculosis caused by Aeromonas salmonicida, comprising the steps of: a) administering to a mammal selected from the group consisting of bovine, ovine, caprine and equine a sufficient amount of A. salmonicida to produce antibodies; b) collecting from the mammal the serum containing the antibodies against A.