Pneumococcal Mastoiditis in Children and the Emergence of Multidrug-Resistant Serotype 19A Isolates

Abstract

At Texas Children's Hospital, 19A has become the predominant serotype causing pneumococcal mastoiditis, partly related to the emergence of multidrug-resistant clonal complex 271 strains. Subperiosteal abscesses and the need for mastoidectomy were more common in children with mastoiditis caused by serotype 19A isolates, compared with isolates of other serotypes.