Rates of antibiotic nonsusceptible pneumococcal disease among children

NS: nonsusceptible; MIC: minimum inhibitory concentration.
* The old/oral meningitis penicillin breakpoints classify isolates as penicillin nonsusceptible at a MIC ≥0.12 mcg/mL.
¶ Not susceptible to 3 or more of the antibiotic classes tested.
Δ The new parenteral penicillin breakpoints classify isolates as penicillin nonsusceptible at an MIC ≥4 mcg/mL for nonmeningitis disease and ≥0.12 mcg/mL for meningitis.