HERNDON, VA (MARKET WIRE) Guardian Technologies International, Inc. (OTCBB: GDTI), today announced that testing of the fully automated tuberculosis (TB) detection system, Signature Mapping TBDx™ (SM TBDx), at the South African National Health Laboratories (NHLS) successfully validated the integrated performance of each hardware component of the automated slide management system. The integrated hardware-software TB detection solution accurately identified 100% of the TB slides processed during an abbreviated trial that was delayed due to shipping and customs issues beyond Guardian's control.