About the Authors

Xiaopeng Qi

Contributed equally to this work with: Xiaopeng Qi, Yong Wang

qixp@chinacdc.cn (XQ); gaofu@chinacdc.cn (GFG)

Affiliation National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, Beijing, China

Yong Wang

Contributed equally to this work with: Xiaopeng Qi, Yong Wang

Affiliation State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Yue Li

Affiliation National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, Beijing, China

Yujie Meng

Affiliation National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, Beijing, China

Qianqian Chen

Affiliation National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, Beijing, China

Jiaqi Ma

Affiliation National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, Beijing, China

George F. Gao

qixp@chinacdc.cn (XQ); gaofu@chinacdc.cn (GFG)

Affiliation Office of the Director, Chinese Center for Disease Control and Prevention, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GFG XQ. Performed the experiments: XQ YW YM. Analyzed the data: XQ YW YL QC JM. Contributed reagents/materials/analysis tools: XQ YW YL. Wrote the paper: XQ YW.