Houston Chronicle, July 26, 2007 GALVESTON - Dr. James LeDuc, a professor and administrator at the University of Texas Medical Branch at Galveston, is among 24 of the nation's global health experts chosen as a "global health ambassador" by Research! America's Paul G. Rogers Society for Global Health Research. LeDuc directs the global health program within the Institute for Human Infections and Immunity at UTMB.