^aBureau of Hepatitis, HIV, and Sexually Transmitted Infections, New York City Department of Health and Mental Hygiene, Queens, NY

^bDepartment of Medicine, University of California, San Diego, La Jolla, CA, USA.

Correspondence to Qiang Xia, MD, MPH, HIV Epidemiology Program, Bureau of Hepatitis, HIV, and Sexually Transmitted Infections, New York City Department of Health and Mental Hygiene, 42-09 28th Street, Queens, NY 11101, USA. Tel: +1 347 396 7664; e-mail: [email protected]

Received 9 August, 2022

Accepted 18 August, 2022