Over-treatment of carbapenemase-producing Enterobacteriaceae.

Objectives: To describe the treatment and outcomes of patients with carbapenemase-producing Enterobacteriaceae and evaluate whether these cases represented active infection requiring antibiotic therapy or colonization.

Methods: Adult inpatients with carbapenemase-producing Enterobacteriaceae were retrospectively evaluated. Cases were classified as colonization versus infection by 2 infectious diseases physicians.