Title: Serum banks for serological survey of SARS-CoV-2 and emerging infectious diseases 
Yanlong Cong1, Junfeng Li2, Yixue Sun3, Fengjie Wang2, Lifeng Zhao4, Honghong Xue5, Li Guo4, *, Yongzhi Wang6, *, Xiaocheng Li7, *, Xuelian Liu8, *, Jinghui Zhao8, 7, *
Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun 130062, China
Jilin Agricultural University, Changchun 130118, China
3. Jilin Research & Development Center of Biomedical Engineering, Changchun University, Changchun 130022, China
4. College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin 132101, China
5. People’s Government of Huanxi Township, Chuanying District, Jilin 132101, China
6. Jilin Academy of Agricultural Sciences, Changchun, 130033, China
7. State Key Laboratory of Direct-Fed Microbial Engineering, Beijing DaBeiNong Science and Technology Group Co., Ltd. (DBN), Beijing 100192, China
8. Jilin DaBeiNong Agriculture and Animal Husbandry Technology Co., Ltd, Changchun 130102, China