Fig. 1From: Invasive pneumococcal disease among adults in Japan, April 2013 to March 2015: disease characteristics and serotype distributionDistribution of the serotypes of causative pneumococcal isolates (n = 291) from patients with invasive pneumococcal diseases from 10 prefectures in Japan, from April 2013 to March 2015 grouped by vaccine serotypeBack to article page