Summary
- Total new HIV infections fell from 2.1 million in 2010 to 1.2 million in 2025, a 43% decline across all ages.
- Adult infections (15+) fell from 1.8 million to 1.1 million over the same period, accounting for around 92% of all new cases in 2025.
- Child infections (0 to 14 years) declined from 300,000 to 93,000, a 69% reduction, yet progress has stalled in recent years.
Statistical Insights
UNAIDS 2026 data show that total new HIV infections declined steadily from 2.1 million in 2010 to 1.8 million in 2015, 1.5 million in 2020, 1.3 million in 2024, and 1.2 million in 2025. The decline has been consistent, but has slowed noticeably in the most recent years.
Adults aged 15 and older account for the overwhelming share of new infections. Their numbers fell from 1.8 million in 2010 to 1.6 million in 2015, 1.3 million in 2020, 1.2 million in 2024, and 1.1 million in 2025. This group represents approximately 92% of all new HIV infections in 2025, reflecting the dominant role of sexual transmission among working-age adults.
The story for children aged 0 to 14 years is both encouraging and alarming. New infections in this group fell sharply from 300,000 in 2010 to 190,000 in 2015 and 140,000 in 2020, driven largely by the expansion of prevention of mother-to-child transmission (PMTCT) programmes. By 2025, child infections had fallen further to 93,000. However, UNAIDS notes that progress has stalled in recent years, meaning the rate of decline is no longer accelerating.
Comparing the three groups reveals an important structural gap. Adult infections have declined by 39% since 2010, while child infections have fallen by 69%. Despite this proportionally faster decline, children still represent nearly 8% of all new HIV cases in 2025. Every child born with HIV reflects a failure of a preventable intervention, since PMTCT, when fully delivered, can reduce mother-to-child transmission to near zero.
Policy Insights
Progress in reducing HIV infection rates across all age groups is real, but uneven. Closing the remaining gaps requires targeted action on both adult and child transmission.
- Governments must reinvest in PMTCT programmes to eliminate the remaining 93,000 annual child infections, since vertical transmission from mother to child is entirely preventable with the right interventions.
- Prevention strategies for adults must focus on the hardest-to-reach groups, including men, young women in high-burden regions, and key populations who face legal and social barriers to testing and treatment.
- The slowing pace of decline in adult infections signals an urgent need for next-generation prevention tools, including expanded access to pre-exposure prophylaxis (PrEP) and community-based testing programmes.
Source: UNAIDS 2026 Epidemiological and Financial Estimates, July 2026. Data year: 2025. 172 countries reporting. Published by Datapott Analytics — datapott.org