[Quality control on antibiotic sensitivity tests: preliminary trials (author's transl)].

A quality control study in clinical microbiology was instituted by A.M.O.I. (Associazione Microbiologi Ospedalieri Italiani) since 1974. Preliminary results are reported on sensitivity tests quality control made by a group of laboratories in various parts of Italy. Our data show the great variety of methods used for antibiotic sensitivity disk determination and therefore the opportunity to standardize this procedure.