Changes in the epidemiology of acute mastoiditis according to the implementation of pneumococcal vaccination in a Spanish population Ángela Manzanares; David Aguilera-Alonso; María Escobar; Sara Vigil-Vázquez; Emilia Cercenado; Jesús Saavedra-Lozano;

Evolution of the distribution of Streptococcus pneumoniae serotypes isolated in pleural fluid in the Madrid Autonomous Community between the years 2007¿2018 Juan Carlos Sanz; Sara de Miguel; María Ordobás; Luis García Comas;

Incidence of pneumococcal and all-cause pneumonia in adults in Catalonia following the implementation of universal pneumococcal vaccination in children: 2015¿2016 vs. 2017¿2018 Verònica Torras-Vives; Cinta de Diego-Cabanes; Eva M. Satué-Gracia; Maria José Forcadell-Peris; Olga Ochoa-Gondar; Ángel Vila-Córcoles;