1. Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Science, Shanghai Medical College, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People’s Republic of China
2. Xinjiang Medical University, School of Public Health, Department of Epidemiology, Wulumuqi, People's Republic of China
3. Longhua District Center for Chronic Disease Control, Shenzhen, People’s Republic of China
4. Shenzhen Center for Chronic Disease Control, Shenzhen, People’s Republic of China
5. Laboratorio de Genética Molecular, CMBC, IVIC, Caracas, Venezuela