'''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]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#p</ref>
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'''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]].<ref>https://www.cdc.gov/vaccines/about/terms/glossary.htm#p</ref>