Epidemiology of pediatric community-acquired bloodstream infections in a children hospital in Paris, France, 2001 to 2008.

In 2001 to 2008, we documented 483 cases of pediatric community-acquired bacteremia mostly because of Streptococcus agalactiae (< 4 days), Escherichia coli (4 days to 3 months), pneumococci (3 months to 5 years), and Staphylococcus aureus (> 5 years). Pneumococcal conjugate vaccination affected the serotype distribution of pneumococcal bacteremia but not its frequency. Serotype 19A represented 12% and 22% of pneumococci in the prevaccine and vaccine periods, respectively.