Characteristics of Streptococcus pneumoniae serotype 19A isolates from children in the pre and post Conjugate Vaccine Era. Single center experience 1986-2015

PD caused by serotype 19A increased significantly after the introduction of PCV7 followed by a decline after PCV13 use. The vast majority of persisting 19A isolates was MDR. Surveillance studies are necessary to monitor the changes in the pneumococcal population.