Pneumococcal meningitis before the introduction of 10-valent pneumococcal conjugate vaccine into the National Childhood Immunization Program in Poland

An analysis of pneumococcal menigitis surveillance data from Poland. It was part of a PhD project of Aleksandra Polkowska. Since I was her mentor when she started her career in the Public Health institute and I involved her in pneumococcal disease surveillance when she was still working in Poland, she asked me to be part of this publication. I did not have a huge contribution, but it was a pleasure to work with her.