BLUE BELL, Pa.--(BUSINESS WIRE)--Inovio Pharmaceuticals, Inc. (NYSE Amex:INO), a leader in the development of therapeutic and preventive vaccines against cancers and infectious diseases, announced today that it has immunized its first subject in a U.S. Phase I clinical trial to evaluate its SynCon™ H5N1 (avian) influenza DNA vaccine, VGX-3400X. This H5N1 vaccine study represents the first step in demonstrating Inovio’s novel universal influenza vaccine approach, which aims to bypass the current requirement for annual strain and subtype-specific influenza vaccines by developing a single vaccine to potentially protect against all strains within multiple targeted subtypes, such as H5N1 and H1N1, posing risk to humans.