We have analyzed a representative selection of the HARMONY meticillin-resistant Staphylococcus aureus strain collection originating from 11 European countries (Cookson, B.D. et al.
View Article and Find Full Text PDFFor several reasons the major outer membrane protein from Neisseria gonorrhoeae (gonococcal protein [PI]) is an attractive component for a gonococcal vaccine. This paper describes the influence of two different physical forms of PI on its immunogenic activity. To this end PI was delivered in liposomes and in protein-detergent complexes.
View Article and Find Full Text PDFEffective meningococcal vaccines have to induce protection against groups A, B, C, W-135 and Y meningocci. Polysaccharides are the most effective vaccine candidates against groups A, C, W-135 and Y meningococci. The vaccine potential of polysaccharides is enhanced by conjugating the polysaccharides to carrier proteins.
View Article and Find Full Text PDFFor the preparation of meningococcal group C polysaccharide-tetanus toxoid conjugate the reactive reagent N-ethyl-N'-(dimethylaminopropyl) carbodiimide is used. The application of this reagent results in a number of stable linkages (viz. "peptide" linkages between the polysaccharide and tetanus toxoid, intrachain ester linkages in the polysaccharide component and binding of the N-acylurea derivative of the reagent) and less stable ones (viz.
View Article and Find Full Text PDFAntibodies to meningococcal group A polysaccharide were determined by radioimmunoassay (RIA) and enzyme-linked immunosorbent assay (ELISA) in serum samples from 16 adults vaccinated with bivalent meningococcal group A and C polysaccharide vaccine. The specific antibody levels in the serum samples were expressed as micrograms of antibody protein per milliliter of serum. For RIA the polysaccharide was radiolabeled extrinsically with 125I.
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