1. Laboratory of Pathogen Biology, State Key Laboratory of Respiratory Disease, Center for Infection and Immunity, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences, Guangzhou, China
2. Shenzhen Geriatric Research Institute, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen, China
3. The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
4. School of Life Sciences, Anhui University, Hefei, China.