Papua New Guinea’s population is estimated at 11.7 million (NSO 2021), with an overall HIV prevalence of 1.5% among adults aged 15+ (NDoH 2025). There are about 30 new HIV infections daily, including 7 infants born with HIV each day.
PNG faces a mixed HIV epidemic, disproportionately affecting key populations (KPs) — including female sex workers (FSW), men who have sex with men (MSM), and transgender women (TGW) — and their sexual partners. Priority populations also include pregnant women and their children, who continue to face elevated risk of transmission.
HIV prevalence among key populations remains significantly higher than the national average — 16% among FSW and their sexual partners, and 8% among MSM and TGW (IBBS 2017). The 2025 national size estimates identify approximately 195,400 FSW, 358,200 male clients, 77,700 MSM, and 5,100 TGW, totalling over 636,000 individuals from key population groups nationwide.
Within the National Capital District (NCD), an estimated 18,300 KPs reside — including 12,600 FSW, 5,300 MSM, and 400 TGW (PSE 2023). NCD also records one of the highest positivity rates in HIV testing at 3.8%, reflecting the concentrated nature of the epidemic.
Despite expanded testing and treatment coverage, barriers remain significant: high levels of violence, stigma, and discrimination (S&D), combined with socio-cultural and gender inequalities, continue to limit access to quality HIV/STI services among KPs, PLHIV, and women.
The ‘Kommuniti Wok Senis Kamap’ (Community-Led Monitoring) project, launched in 2021 with USAID support, continues to improve HIV service quality, address barriers to achieving 95-95-95 targets, and empower civil society, PLHIV networks, and KP communities in NCD and beyond.