Dr. Tang and his associates were the first to have developed DNA vaccines, skin-patch vaccines, adenovirus-vectored in ovo vaccines, and virus/mutation-agnostic vaccines, etc. Dr. Tang obtained his PhD degree from Indiana University, and carried out his postdoctoral work at Baylor College of Medicine and Duke University. He was appointed as Assistant Instructor/Instructor at University of Texas Southwestern Medical Center, and subsequently as Assistant/Associate Professor at University of Alabama at Birmingham (UAB). He founded Vaxin Inc. (currently known as Altimmune, Inc.; Nasdaq: ALT) on UAB campus in 1997. He founded VaxDome Inc. in Fort Worth, Texas in 2019.