PT - JOURNAL ARTICLE ED - , TI - Q&A with infectious disease specialist William Schaffner: Preventing pneumococcal illness: Vaccines can prevent pneumococcal disease in all age groups DP - 2011 Feb 01 TA - The Nation's Health PG - 7--7 VI - 41 IP - 1 4099 - http://www.thenationshealth.org/content/41/1/7.short 4100 - http://www.thenationshealth.org/content/41/1/7.full SO - Nations Health2011 Feb 01; 41