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Systemic immunity. Systemic acquired resistance (SAR) provides enhanced, long-lasting systemic immunity to secondary infection by a range of biotrophic, hemibiotrophic and necrotrophic pathogens that have diverse modes of infection.
Application of oridonin in preparation of poultry vaccine adjuvant
The present application relates to the technical field of veterinary biological products, in particular to application of oridonin in preparation of poultry vaccine adjuvant. The poultry vaccine adjuvant is composed of oridonin, solvent and buffer. Experiments prove that after mixing the poultry vaccine adjuvant with poultry inactivated vaccine (such as Newcastle disease vaccine) for immunization, the humoral immune level of poultry can be significantly improved (HI titer of 21d after the second immunization is increased by more than 1.5 log2), and the secretion level of specific IgY (systemic immunity) and IgA (mucosal immunity) in serum can be extremely significantly up-regulated, and the high level of antibody is maintained for more than 4 weeks longer than that of the conventional vaccine group. Compared with commercial adjuvant ISA 201, the present application has better immune enhancement activity, high safety, no adverse reaction at injection site, and wide clinical application prospect.
Owner:SHANGHAI JIAOTONG UNIV