methamphetamine use is the single biggest risk factor in American gay and bisexual men becoming HIV-positive, according to a new study.Researchers associated with the City University of New York queried nearly 4,800 people — almost entirely queer cisgender men aged 16-49 — in 2017 and 2018, recruiting them from gay dating apps.
The participants began the study as HIV-negative and were not on PrEP, the preventative medication that makes it nearly impossible to contract HIV.