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 Gram-negative bacteria that produce an enzyme; beta-lactamase that has. the ability to break down commonly used antibiotics, such as penicillins and. cephalosporins and render them ineffective for treatment. If ESBL-producing bacteria. cause an infection, a different antibiotic may need to be used to treat the infection.