Epidemiology Study on Incidence Rate of Pneumococcal Pneumonia and Distribution of Streptococcus Pneumoniae Serotypes in Residents aged 18 Years or Older in Goto City in Japan. - Epidemiology Study on Incidence Rate of Pneumococcal Pneumonia and Distribution of Streptococcus Pneumoniae Serotypes in Residents aged 18 Years or Older in Goto City in Japan.

A total of 2,103 patients with CAP were enrolled; 84% were aged 65 years or older and 6.7% died during the study. The annual CAP, S pneumoniae CAP, 13-valent pneumococcal conjugate vaccine (PCV13) serotype CAP, and PCV20 serotype CAP incidences per 100,000 population were 1,280, 227, 63, and 110, respectively. S pneumoniae was detected in 17.8% of all patients with CAP by any detection method, with 4.9%, 5.5%, and 8.6% of cases of CAP resulting from PCV13, PCV15, and PCV20 serotypes, respectively.