Since October 2002, Sciensano’s Epidemiology of infectious diseases department has coordinated since the surveillance network PediSurv. Approximately 350 clinicians (pediatricians in Belgium and general practitioners in Brussels) participate voluntary in the network and collect monthly demographic, clinical and microbiological data from a series of severe and/or rare infectious diseases in children <15 years of age. This dataset is a register of invasive pneumoccocal disease cases.