Faster test for staph

Diagnosing Staphylococcus aureus bacteremia in the blood typically takes a couple of days waiting on test results. But University of Iowa researchers report that testing for a specific enzyme secreted by staph can reduce the wait for a diagnosis to just hours. In an article published in PLOS ONE, the UI team showed that measuring micrococcal nuclease in a blood sample can determine if staph is present within three hours. Based on its fast turnaround time, this enzyme test may also enable doctors to monitor whether a prescribed antibiotic is effectively killing the bacteria and change medications if it isn’t—all in the same day.