1 Special Pathogens Program, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada2 Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada3 Shenzhen Key Laboratory of Pathogen and Immunity, State Key Discipline of Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen Guangzhou 518020, China4 Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China