Ye, Wenjing
Chen, Guoxi
Li, Xiaopan
Lan, Xing
Ji, Chen
Hou, Min
Zhang, Di
Zeng, Guangwang
Wang, Yaling
Xu, Cheng
Lu, Weiwei
Cui, Ruolin
Cai, Yuyang
Huang, Hai
Yang, Ling
Funding for this research was provided by:
Zhejiang University special scientific research fund for COVID-19 prevention and control (2020XGZX065)
Article History
Received: 8 April 2020
Accepted: 18 June 2020
First Online: 3 July 2020
Ethics approval and consent to participate
: The National Health Commission of the People’s Republic of China has determined that data collection and analysis of cases and close contacts are part of ongoing investigations into outbreaks of public health events and are therefore exempt from the approval requirements of the institutional review board. Informed consent was exempted with the approval of Medical Ethics Committee of Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China (No. XHEC-D-2020-043).
: Not applicable.
: The authors declared no competing interests.