After graduating in 1983, he entered the graduate school ofBeijing Agricultural University, where he earned a master's degree inmicrobiology andveterinary epidemiology in 1986.[4] This enabled him to change his career direction to infectious disease research, and he joined the faculty of the university as a teaching assistant and later lecturer invirology.[3]
In 1991, Gao went to the United Kingdom to study atOxford University, where he earned his Ph.D. in biochemistry in 1994 under the supervision of David H. L. Bishop and Ernest A. Gould.[4] After a three-month stint at theUniversity of Calgary in Canada, he returned to Oxford as apostdoctoral researcher, working under John I. Bell,Andrew McMichael and Bent K. Jakobsen.[4]
In 1999, Gao moved toHarvard Medical School as a Wellcome Trust International Travelling Fellow and conducted research underDon Craig Wiley andStephen C. Harrison until 2001. From 2001 to 2004, Gao taught at Oxford University, serving as a lecturer, doctoral supervisor, and group leader.[4]
After 13 years abroad, Gao returned to China in 2004 to serve as Professor and Director of theInstitute of Microbiology, Chinese Academy of Sciences (IMCAS).[3] In 2008 he was appointed Vice President of Beijing Institutes of Life Science and Director of the National Key Laboratory of Pathogenic Microorganism and Immunology of the CAS. He has also been anadjunct professor at Oxford since 2010.[4]
Gao's main research focus is on the mechanism ofviral entry and release, especially thecross-species transmission (host jump) of theinfluenza virus. He also studiesviral ecology, including the ecology of the flu virus in migratory birds and poultry markets.[10] He was the first to describe the cross-species transmission mechanism of theH5N1 avian flu virus.[11]
Gao's research also involves public and global health policy. During the peak of the2014 Ebola outbreak, he spent two months leading the China Mobile Test Laboratory inSierra Leone from September to November, playing a role that is described by the USNational Academy of Sciences as "heroic" in fighting the epidemic.[10]
As of 2019, Gao has published 20 books or book chapters and over 500 peer-reviewed research papers,[10] including those on newly discovered pathogenic viruses such as theSARS virus and theH7N9 avian flu virus.[11]
^全世界一起做科学,全世界共享技术,全世界共享人类文明的成果 [The world does science together, the world shares technology, and the world shares the fruits of human civilization].China Science Communication (in Simplified Chinese). 29 November 2017. Archived fromthe original on 1 November 2019. Retrieved1 November 2019.