Active against most MDR Gram-negative organisms such as Pseudomonas and Acinetobacter.

Proteus, Providencia, Serratia, and others are typically resistant.

Note: There are no clinical breakpoints for Colistin and the Enterobacteriaeceae.

Antibiogram data represent the % of wild-type isolates (below or equal the Epidemiological Cut-off Value or ECV).

Wild-type (WT) isolates are those presumed to not have acquired or mutational resistance while the Non-Wild-Type (NWT) isolates are those with acquired or mutational resistance.