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Nasal vaccination is a promising, needle-free alternative to classical vaccination. Nanoparticulate delivery systems have been reported to overcome the poor immunogenicity of nasally administered soluble antigens, but the characteristics of the ideal particle are unknown. This study correlates differences in physicochemical characteristics of nanoparticles to their adjuvant effect, using ovalbumin...
In order to study the influence of antigen composition, spatial organization of antigen and the route of administration, four cell culture-derived, inactivated, nonadjuvanted influenza vaccine formulations, i.e. whole inactivated virus (WIV), split, subunit and virosome vaccines were prepared from a single antigen batch. We directly compared the immunogenicity and efficacy of these vaccine formulations...
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