About the Authors
State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
School of Life Sciences, Shandong University of Technology, Zibo, Shandong, People's Republic of China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: XG HL HW SF GL. Performed the experiments: XG HL SF. Analyzed the data: XG HL HW ZG GL. Contributed reagents/materials/analysis tools: GL. Wrote the paper: XG HL GL.