About the Authors

Shaowei Sang

Contributed equally to this work with: Shaowei Sang, Shasha Wang

Affiliation Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, People’s Republic of China

Shasha Wang

Contributed equally to this work with: Shaowei Sang, Shasha Wang

Affiliation Institute of Public Health and Management, Weifang Medical University, Weifang, People’s Republic of China

Liang lu

Affiliation State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, People’s Republic of China

Peng Bi

liuqiyong@icdc.cn; lvming@sdu.edu.cn; peng.bi@adelaide.edu.au

Affiliations School of Public Health, Anhui Medical University of China, People’s Republic of China, School of Public Health, The University of Adelaide, Adelaide, Australia

Ming Lv

liuqiyong@icdc.cn; lvming@sdu.edu.cn; peng.bi@adelaide.edu.au

Affiliation Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, People’s Republic of China

Qiyong Liu

liuqiyong@icdc.cn; lvming@sdu.edu.cn; peng.bi@adelaide.edu.au

Affiliation State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, People’s Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: SS. Formal analysis: SS SW. Funding acquisition: QL SS. Methodology: SS SW. Resources: SS SW Ll. Supervision: PB ML QL. Writing – original draft: SS. Writing – review & editing: SS PB ML QL.