Caijun Sun is a professor at the School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, China. He received his BSc from Hebei University in 2001, his MSc from Jinan University in 2004, and his PhD from the University of Chinese Academy of Sciences in 2009. He was a researcher. at the Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, and a Visiting Associate Professor at the Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles. His scientific interests and skills include, but are not limited to, the following: innate immunity against viral infections; novel vaccines against infectious diseases, especially for HIV and influenza; experimental manipulations for animal models (including rhesus monkeys, rabbits, and mice); assays for cellular immune responses, such as ELISPOT, ICS, polyfunctional T cells, and CFSE staining for cell proliferation; and multi-color FACS assays for humoral immune responses, such as ELISA, SIV-neutralizing antibody assays, and adenovirus-neutralizing antibodies, and ADCVI; molecular biology technology.