Regarding characteristics related to HIV infection, 17.2% (n=443) of the 2570 participants received their diagnosis within 1 year, 97.3% (n=2501) were receiving ART, 67.9% (n=1746) reported undetectable viral load, and 46.0% (n=1181) reported their CD4+ T cell count level to be above 500/μL. The gene discussed is CD4; the disease is HIV infectious disease.