Affinity Biosensors Ultra-Rapid Phenotypical AST by Microbe Mass Measurement has been selected as a Step 1 semifinalist in the Antimicrobial Resistance Rapid, Point-of-Need Diagnostic Test Challenge by the National Institutes of Health (NIH) and the Biomedical Advanced Research and Development Authority (BARDA) of the Office of the Assistant Secretary for Preparedness and Response (ASPR). The federal prize competition will award up to a total of $20 million in prizes, subject to the availability of funds, for innovative rapid, point-of-need diagnostic tests to combat the emergence and spread of drug resistant bacteria.