More than half of gay and bisexual men seen at a Victorian clinic have at least one type of high-risk anal HPV, underscoring the potential benefit of catch-up vaccination programs for adults, sexual health physicians say.

Researchers examined the prevalence of HPV in 496 men who have sex with men (MSM), aged 20-26, before they received their first dose of HPV vaccine at the Melbourne Sexual Health Centre in 2017.