Funding for this research was provided by:
Fogarty International Centre (1D43TW009532)
Bill & Melinda Gates Foundation to the MeSH Consortium (BMGF-OPP1120138)
The Project for Key Medicine Discipline Construction of Guangzhou Municipality (2017-2019-07)
National Institutes of Health (1R01AI114310)
National Institute of Allergy and Infectious Diseases (5P30AI050410)
The National Key Research and Development Program of China (2017YFE0103800)
UNC Center for AIDS Research (NIAID 5P30AI050410)
Received: 4 January 2018
Accepted: 17 October 2018
First Online: 19 November 2018
Ethics approval and consent to participate
: Written informed consent was obtained from each participant prior to the survey for both surveillance and the testing service. The study was carried out in accordance with approved guidelines. The ethics review committee of Guangzhou CDC reviewed and approved the study protocol.
: All authors critically reviewed and approved the final version of this paper for publication.
: We declare no competing interests. We also declare that Joseph Tucker is an editorial board member for BMC Infectious Diseases.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.