Hospital-reported Pneumococcal Susceptibility to Penicillin1
Figure 1. Proportion of penicillin-nonsusceptible pneumococcal bloodstream infections at hospitals in the Delaware Valley. The number of hospitals with each reported level of penicillin nonsusceptibility among all pneumococcal bloodstream isolates at each hospital in 1998 are shown. Penicillin nonsusceptibility was defined as any isolate with a penicillin MIC >0.1 μg/mL. Hospitals with <10 isolates in 1998 were excluded.