1. Changchun University of Chinese Medicine, Changchun 130117, China
2. College of Animal Science, Jilin University, Changchun 130062, China
3. Department of Gastroenterology, Zhongshan Hospital of Fudan University, Shanghai, China
4. Affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130021, China
5. Department of Anesthesiology, Peking University Third Hospital, Beijing, China
6. Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
7. Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, China