1 Guangdong Laboratory for Lingnan Modern Agriculture, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
2 Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Banting and Best Diabetes Centre, University of Toronto, Toronto, ON, Canada.
3 Guangdong Laboratory for Lingnan Modern Agriculture, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, Guangzhou, China. Electronic address: shenyy@scau.edu.cn.