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Safety and Immunogenicity Testing of an Intranasal Group B Meningococcal Native Outer Membrane Vesicle Vaccine in Healthy Volunteers

机译:健康志愿者鼻内B组脑膜炎球菌天然外膜囊泡疫苗的安全性和免疫原性检测

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An intranasal vaccine composed of native outer membrane vesicles (NOMV) not exposed to detergent or denaturing agents was prepared from the group B meningococcal strain and tested in 32 healthy adult volunteers. Four groups of 8 volunteers were vaccinated intranasally with three doses of vaccine. The vaccine was very well tolerated in all dosing groups despite the presence of lipo-oligosaccharide in the vaccine at a level of 25% relative to protein. The antibody response as measured by ELISA in serum, saliva and nasal wash fluids was relatively low in all 4 groups but the induced serum antibodies had strong bactericidal activity.

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