TECHLAB, Inc, a developer and manufacturer of rapid, noninvasive diagnostic tests for gastrointestinal diseases, has received US FDA clearance for the Tri-Combo Parasite Screen test. This test provides a complete analysis for Giardia, Cryptosporidium, and Entamoeba histolytica, the three most common intestinal protozoan parasites. It specifically detects pathogenic E histolytica and does not cross react with nonpathogenic E dispar (data on file). The Tri-Combo Parasite Screen test is an enzyme immunoassay for the simultaneous qualitative detection of Giardia spp., Cryptosporidium spp., and/or E histolytica antigen in human fecal specimens.