uding Hypervirulent Strains CAMBRIDGE, Mass., Aug. 1, 2011 /PRNewswire/ -- Intelligent Medical Devices, Inc. (IMDx) today announced it has received CE-Mark for a high-throughput automated assay for the detection of C. difficile, including the A-B+ 1470 variant, as well as the NAP1 strain. The IMDxTM C.