Roche Molecular Systems Inc announced that the FDA has cleared its new LightCycler® MRSA Advanced Test for the detection of methicillin-resistant Staphylococcus aureus (MRSA) for clinical use in the United States. The LightCycler® MRSA Advanced Test is a qualitative in-vitro diagnostic test for the direct detection of nasal colonization with bacterial MRSA. The test is designed to aid in the prevention and control of MRSA infections in healthcare settings.