^aBeijing Key Laboratory for HIV/AIDS Research, Sino-French Joint Laboratory for Research on Humoral Immune Response to HIV Infection, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China

^bGlobal Health Institute, University of Antwerp, Campus Drie Eiken, Gouverneur Kinsbergencentrum, Wilrijk, Belgium.

Correspondence to Guido Vanham, Global Health Institute, University of Antwerp, Campus Drie Eiken, Gouverneur Kinsbergencentrum; Doornstraat 331, 2610 Wilrijk, Belgium. E-mail: [email protected]

Received 10 January, 2023

Accepted 16 January, 2023