NEW YORK (GenomeWeb) – GenMark recently announced that the last of three planned multiplex molecular diagnostic assays to detect blood stream infection pathogens has been cleared by the US Food and Drug Administration. The firm has been offering two multiplex panels — one for gram-positive bacteria and one for fungi — for about four months, but the addition of a third panel for gram-negative bacteria completes a suite for identifying pathogens in blood cultures, which is anticipated to now bring in new business.