1. 1State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
2. 2Ningbo International Travel Healthcare Center, Ningbo Customs District People’s Republic of China, Ningbo 315012, PR China
3. 3School of Biology and Food Sciences, Shangqiu Normal University, Shangqiu, Henan 476000, PR China
4. 4Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, PR China
5. 5Shanghai Institute for Emerging and Re-emerging infectious diseases, Shanghai Public Health Clinical Center, Shanghai 201508, PR China