Polysaccharide vaccines

Polysaccharide vaccines are composed of long chains of sugar molecules that resemble the surface of certain types of bacteria. Polysaccharide vaccines are available for pneumococcal disease, meningococcal disease and Haemophilus Influenzae type b.[1]

## References[edit]

1. ↑ https://www.cdc.gov/vaccines/about/terms/glossary.htm#p