Funding for this research was provided by:
National Natural Science Foundation of China (81000758)
Medical Science and Technology Innovation Platform Support Project of Zhongnan Hospital, Wuhan University (PTXM2020008)
Science and Technology Innovation Cultivation Fund of Zhongnan Hospital, Wuhan University (cxpy2017043)
the AbbVie foundation for maternity and child care and Prevention of mother-to-child transmission of HIV·Chinese Association of STD and AIDS Prevention and Control (PMTCT2017-005, PMTCT201901)
Received: 7 July 2020
Accepted: 15 October 2020
First Online: 26 October 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Zhongnan Hospital affiliated to Wuhan University (ref.200726). All pregnant women provided written informed consent to participate in this study.
: Not applicable.
: The authors declare that they have no competing interests.