About the Authors

Xiaoyan Zhang

Contributed equally to this work with: Xiaoyan Zhang, Jianqing Xu

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Jianqing Xu

Contributed equally to this work with: Xiaoyan Zhang, Jianqing Xu

Affiliations State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China, Shanghai Public Health Clinical Center & the Institutes of Biomedical Sciences, Fudan University, Shanghai, China

Hong Peng

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Yan Ma

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Lifeng Han

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Yuhua Ruan

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Bing Su

Affiliation Anhui Provincial Center for Disease Control and Prevention, Hefei, China

Ning Wang

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Yiming Shao

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XZ JX NW YS. Performed the experiments: XZ JX HP YM LH YR BS. Analyzed the data: XZ JX. Wrote the paper: XZ JX. Help to coordinate: NW.