35results about How to "No secondary infection" patented technology

The invention relates to the field of veterinary biological products and is aimed at providing a veterinary vaccine immunologic adjuvant as well as a preparation and application method thereof. The adjuvant is prepared by mixing water-soluble calcium carbonate, polysorbate 80, 2-phenoxy ethanol, chitosan oligosaccharide, xanthan gum and deionized water, wherein the weight ratio of the water-soluble calcium carbonate to deionized water is 0.001-0.01%; the volume ratio of the polysorbate 80 to deionized water is 1-10%; the final concentration of the 2-phenoxy ethanol is 0.5-2.5% (volume ratio); the final concentration of the chitosan oligosaccharide is 0.5-2% (weight ratio); the final concentration of the xanthan gum is 0.1-2% (weight ratio). The adjuvant provided by the invention can enhance the identification ability of lymphocytes for the A, B and H antigens, promote the combination of multiple antigens with an antibody and enhance the immune response level and antigen presentation ability. The adjuvant is kept in a steady state at low temperature and room temperature; due to the antibacterial ability, secondary infection after immunization is avoided. The adjuvant is easy to prepare and thus can be stored for long time at room temperature. The cost of raw materials is low, and the adjuvant is suitable for large-area promotion and application.