Prof. Gao has been working on clinical service, researching and teaching more than twenty years. He has trained a dozen of doctors and masters. He is now in charge of several national research subjects (including 973 project and 11th five-year national key scientific and technological project). He also won five prize of Guangdong Provincial Scientific and Technological Advances Award. As the editor in chief of compiled textbooks -- Infectious Disease, Prof Gao has published more than a great deal of teaching materials and major scientific literatures.