Pneumococcal Vaccine By Margot L Savoy, MD, MPH, Lewis Katz School of Medicine at Temple University Reviewed / Revised Oct 2022 View Patient Education Preparations Indications Contraindications and Precautions Administration Adverse Effects More Information Pneumococcal disease (eg, otitis media, pneumonia, sepsis, meningitis) is caused by some of the > 90 serotypes of Streptococcus pneumoniae (pneumococci).