Introduction of pediatric PCV7 reduced adult pneumococcal pneumonia prevalence.
After PCV7 introduction serotypes 1 and 7F occurred more frequent in adult pneumonia.
After PCV7 introduction pneumonia was more often accompanied with pleural effusion.
Pediatric PCV7 did also affect disease severity of adult pneumococcal pneumonia.
PCV10 introduction will further change the clinical manifestation of adult pneumonia.