Medical Definition of configuration. 1  1a: relative arrangement of parts or elementsb: the stable structural makeup of a chemical compound especially with reference to the space relations of the constituent atoms. 2  2: gestalt personality configuration.
Infections with multi-drug resistant E. coli, which is also known as ESBL (extended spectrum beta-lactamase), have been assumed to be a hospital phenomenon.
ESBLs are resistant to most types of antibiotics (third generation). The majority of ESBL producing strains are either klebsiella pneumoniae (K. pneumoniae), klebsiella oxytoca (K. oxytoca) and Escherichia coli (E. coli).