Funding for this research was provided by:
pearl river talent plan in guangdong province of china (2019CX01N111)
key laboratory for preventive research of emerging animal diseases in foshan university (KLPREAD201801-13)
science and technology project of guangzhou, guangdong province of china (202103000008)
Received: 15 January 2021
Accepted: 31 August 2021
First Online: 8 September 2021
: The sampling sites in Guangzhou were approved by local community, and during specimen collection, all animal work was complied with the guidelines relating to the recommendations from the Guide for the Care and Use of Laboratory Animals of the Ministry of Health, China. The study protocol was approved by the Research Ethics Committee of the College of Life Science and Engineering, Foshan University, also approved by the Animal Ethics and Welfare Committee of Guangzhou Center for Disease Control and Prevention, and adhered to the guidelines for the Rules for the Implementation of Laboratory Animal Medicine (1998) from the Ministry of Health, and Law on Animal Epidemic Prevention (2015) from the Ministry of Agriculture, China. All surgical procedures were performed in efforts to minimize suffering. Endangered or protected species were not involved in this study.
: Not applicable.
: The authors have declared no competing financial or non-financial interests.