Related Experiment Video
Updated: May 18, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Genotypic resistance testing creates new treatment challenges: two cases of oxacillin-susceptible
Katie A Sharff1, Stefan Monecke, Sarah Slaughter
1Division of Infectious Diseases, Oregon Health and Science University, Portland, Oregon, USA. sharffk@ohsu.edu
Abstract:
Oxacillin-susceptible, mecA-positive Staphylococcus aureus isolates create a treatment challenge for the clinician. In this article, we describe two cases of bacteremia from isolates that carried the mecA gene but were susceptible to oxacillin (oxacillin-susceptible methicillin-resistant S. aureus [OS-MRSA]). DNA microarray analysis was used to characterize these isolates as a mecA-positive, clonal complex 5, pediatric strain and a mecA-positive, clonal complex 8, USA300 strain.
Related Concept Videos
Mechanism of Antibiotic Resistance in MRSA
Clinical Significance of Antibiotic Resistance
Development of Antibiotic Resistance
Antibiotic Selection
Mismatch Repair
Treatment Resistant Cancers
