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  • Title: The immune response and protective efficacy of oral alginate microparticle Aeromonas sobria vaccine in soft-shelled turtles (Trionyx sinensis).
    Author: Yang Z, Pan H, Sun H.
    Journal: Vet Immunol Immunopathol; 2007 Oct 15; 119(3-4):299-302. PubMed ID: 17628697.
    Abstract:
    Aeromonas sobria is an important bacterial pathogen of soft-shelled turtles (Trionyx sinensis). The effect of an oral alginate microparticle A. sobria vaccine (MAV) on immune response and protection efficacy of soft-shelled turtles was investigated. The formalin-killed cultures of A. sobria strain Z-1 (FKC) were incorporated into alginate microparticles, and the encapsulated vaccine was orally used for immunizing turtles. The serum agglutinating antibody titers, bactericidal activity of blood leucocytes and relative percent survival (RPS) post-challenge with virulent live bacteria of control and immunized turtles were detected. The serum agglutinating antibody titers and bactericidal activity of the leucocytes in the turtles orally immunized with MAV reached a level equivalent to those of the turtles injected with FKC and were significantly higher than those of control group. The RPS of turtles immunized orally with the MAV and intraperitoneally with FKC was 89.5 and 94.7%, respectively, while 95% of the control turtles had died. These results demonstrated that oral alginate microparticle A. sobria vaccine was immunogenic, and could confer protective immunity in soft-shelled turtles.
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