Adherence to CLSI recommendations for testing of Staphylococcus aureus isolates in Louisiana hospitals: report of a clinical failure and results of a questionnaire study

We report a case of failure of clindamycin therapy due to inducible clindamycin resistance. We surveyed and found that only 52% of reporting hospitals in the state of Louisiana were performing the D test for inducible clindamycin resistance according to guidelines recommended by the Clinical and Laboratory Standards Institute (formerly the National Committee for Clinical Laboratory Standards).