1. Shandong University, Jinan, Shandong, PR China
2. State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, PR China
3. Shandong University of Traditional Chinese Medicine, Jinan, Shandong, PR China
4. China CDC Key Laboratory of Surveillance and Early-Warning on Infectious Disease, Beijing, PR China
5. Shandong University Climate Change and Health Center, Jinan, Shandong, PR China