RADNOR, Pa.--(BUSINESS WIRE)--PolyMedix, Inc. (OTC BB: PYMX), a biotechnology company focused on developing new therapeutic drugs to treat patients with acute infectious diseases and cardiovascular disorders, announced today that several of its defensin-mimetic antibiotic compounds have shown antimicrobial efficacy in an animal model against the bacteria that causes anthrax. Anthrax is an acute infectious disease caused by the spore forming bacterium Bacillus anthracis that is categorized by the Centers for Disease Control (CDC) as a Class A bioterrorism agent.