Streptococcus pneumoniae serotype 19A: worldwide epidemiology.

<h4>Introduction</h4>Streptococcus pneumoniae causes mucosal and invasive diseases with high morbidity and mortality. Introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) into routine infant immunization programs worldwide resulted in serotype 19A becoming a leading cause of the remain... View More