An ST405 NDM-4-producing Escherichia coli isolated from a Danish patient previously hospitalized in Vietnam.

Sir, Recently, a novel New Delhi metallo-b-lactamase (NDM) variant was described by Nordmann et al. This variant, designated NDM-4, differs from NDM-1 by a single amino substitution and an increased carbapenemase activity. NDM-4 was first detected in an Escherichia coli isolated from a urinary sample from a patient previously hospitalized in India. A second… (More)