About the Authors

Bo Pang

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Xiao Zheng

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Baowei Diao

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Zhigang Cui

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Haijian Zhou

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Shouyi Gao

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Biao Kan

kanbiao@icdc.cn.

Affiliation National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Changping, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BK BP. Performed the experiments: BP XZ BD ZC HZ. Analyzed the data: BP SG BK. Contributed reagents/materials/analysis tools: ZC HZ. Wrote the paper: BP BK.