Streptococcus pneumoniae serotypes isolated from the middle ear of Mexican children diagnosed with acute otitis media.

Objective: The aim of this study was to identify the etiology and the serotypes of S. pneumoniae (Sp) in Mexican children with acute otitis media (AOM).

Materials And Methods: The study includessamples frompatientsdiagnosed with AOM at the Federico Gomez Children's Hospital of Mexico (2002-2003),with positive culture for Sp bacteriologically confirmed in middle ear fluid obtained by tympanocentesis.

Invasive pneumococcal disease in a third level pediatric hospital in Mexico City: epidemiology and mortality risk factors.

Objective: To assess the epidemiologic characteristics of invasive pneumococcal diseases (IPD) among a population in a pediatric hospital in Mexico City and analyze mortality-related risk factors, serotype distribution and antibiotic susceptibility related to S.pneumoniae.

Material And Methods: We performed a retrospective review of IPD cases at a third level pediatric hospital between 1997-2004.