Prevalence of serotype 19A Streptococcus pneumoniae among isolates from U.S. children in 2005-2006 and activity of faropenem.
Critchley IA, Jacobs MR, Brown SD, Traczewski MM, Tillotson GS, Janjic N.
Of 393 isolates of Streptococcus pneumoniae from U.S. children collected in 2005-2006, nonvaccine serotypes accounted for 89.1%, with serotype 19A the most prevalent, representing 30.5% of all isolates. The MIC(90) of faropenem against serotype 19A isolates was 1 mug/ml, compared to > or =8 microg/ml against amoxicillin/clavulanate, cefdinir, cefuroxime axetil, and azithromycin.