Improving population health in resident clinics: increasing pneumonia vaccination rates in adults 65 years and older.

is a significant bacterial pathogen, especially in the elderly. There are two types of pneumococcal vaccines, one with polysaccharides from the capsule of 23 serotypes (PPSV23) and one with polysaccharides from 13 serotypes that have been conjugated to a protein (PCV13). Both vaccines decrease the incidence of invasive pneumococcal disease and are recommended for all people ≥65 years of age.