Funding for this research was provided by:
the Science and Technology Program of Fujian Province (No: 2020Y0002)
Bill and Melinda Gates Foundation (INV-005834)
Xiamen New Coronavirus Prevention and Control Emergency Tackling Special Topic Program (No: 3502Z2020YJ03)
Natural Science Foundation of China (No. 81601794, No. 81703284)
Jiangsu Provincial Natural Science Foundation (No. BK20161584)
“Six One Project” Top Talent Research Plan of Jiangsu High Level Health Talents (LGY2019073)
Received: 10 December 2020
Accepted: 21 April 2021
First Online: 6 May 2021
: This effort of disease control was part of CDC’s routine responsibility in Jiangsu Province, China. Therefore, institutional review and informed consent were not required for this study. All data analyzed were anonymized.
: Not applicable.
: The authors declare that they have no competing interests.