Immunogenic composition

摘要

The present application relates to immunogenic compositions comprising Type 5 and/or 8 capular polysaccharide or oligosaccharide from S . aureus having between 30-100% O-acetylation. Vaccines, methods of treatment using and processes to make an immunogenic composition comprising Type 5 and/or 8 capsular polysaccharides with 30-100% O-acetylation are also described.