Streptococcus pyogenes infections in Spanish children before and after the COVID pandemic. Coming back to the previous incidence María de Ceano-Vivas; Miguel Ángel Molina Gutiérrez; Isabel Mellado-Sola; Paula García Sánchez; David Grandioso; Cristina Calvo;

Molecular characterization of four Group A Streptococcus causing invasive infection in a short time Alba Bellés Bellés; Pilar Villalón Panzano; Mar Miralbés Torner; Albert Bernet Sánchez;

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;