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. 2020 Jul 22;64(8):e00098-20. doi: 10.1128/AAC.00098-20

TABLE 2.

MIC50s and MIC90s for 55 M. abscessus clinical strains of ceftaroline, imipenem, and ceftaroline (CEF)-imipenem with and without relebactam (REL)

Drug MIC range (μg/ml) MIC50 (μg/ml) MIC90 (μg/ml)
CEF 2–32 8 32
Imipenem 0.5–2 1 2
CEF + avibactam (4 μg/ml)a 0.25–2 0.5 1
Imipenem + CEF (1 μg/ml) <0.001–2 0.25 0.5
Imipenem + CEF (1 μg/ml) + REL (4 μg/ml) <0.01–2 0.25 0.5
a

MICs for 21 isolates only.