The purpose of this study is to assess the efficacy of 13-valent pneumococcal conjugate vaccine in the prevention of the first episode of vaccine-type pneumococcal community-acquired pneumonia in adults.
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Number of Participants With First Episode of Confirmed Vaccine-type Community-acquired Pneumonia (VT-CAP)
Timeframe: Baseline up to occurrence of first episode of VT-CAP, death, withdrawal of consent, loss to follow-up, participant request or end of case acquisition defined as accumulation of 130 VT cases (mean follow-up was 3.97 years)