Silver Book Fact
Effectiveness of pneumonia vaccine
PPSV23 (pneumococcal polysaccharide vaccine) protects against 23 types of pneumococcal bacteria and is 60% to 80% effective in preventing pneumococcal bacteremia in adults over the age of 65 who are not immunocompromised.
Ask the Experts: Pneumococcal vaccines. www.immunize.org/askexperts/experts_pneumococcal_vaccines.asp. Published November 1, 2012