Gay bug chasing

Bugchasing (alternatively bug chasing[1]) is the rare practice of intentionally seeking human immunodeficiency virus (HIV) infection through sexual activity. [2] Bugchasers—those who eroticize HIV—are a subculture of barebackers, men who have unprotected sex with other men.
This has given rise to a subculture called “bug chasing” in which gay males (especially young ones) seek unprotected sex with males who are HIV-positive in the hopes of contracting the virus.