Portugal: Young people (ages 15-24) newly infected with HIV

Key figures

What the numbers say

In 2024, Portugal's young people (ages 15-24) newly infected with HIV did not change 0% on 2023 (from 100 to 100).

Across the 30 yearly changes before that (1994 to 2023), the average change was −6.6% and a typical year strayed about 14.5% from that (the standard deviation). This year's change was 0.5 standard deviations above that average, so it was an ordinary year: it sits within the range of normal year-to-year movement.

On record, the biggest yearly fall was 60% in 2007. The numbers show how large and when, not why; for the cause, look at what happened in that country in those years.

From 2015 to 2024 the straight-line trend is downward, about 12.73 a year. A straight line explains 64% of the movement over 10 observed years.

Worked out from the yearly values above. How the checks work: standard deviation, z-scores and straight-line trends.

How it compares

In 2024, Portugal had the 81st highest value of the 131 economies reporting that year. Higher is not always better: for some indicators the lowest value is the one to aim for. See the full ranking.

Closest to Portugal in the 2024 ranking

• New Zealand — 115th of 131: 100
• North Macedonia — 116th of 131: 100
• Oman — 117th of 131: 100
• Qatar — 119th of 131: 100
• Serbia — 120th of 131: 100
• Slovak Republic — 121st of 131: 100

What this measures

Number of young people (ages 15-24) newly infected with HIV.

All 35 values

Young people (ages 15-24) newly infected with HIV in nearby economies

• Albania — 100 (2024)
• Armenia — 100 (2024)
• Azerbaijan — 100 (2024)
• Bulgaria — 100 (2024)
• Croatia — 100 (2024)
• Denmark — 100 (2024)
• Estonia — 100 (2024)
• Georgia — 100 (2024)
• Greece — 200 (2024)
• Iceland — 100 (2024)

More health data for Portugal

• Population ages 00-04, female (% of female population) — 3.81% (2025)
• Population ages 00-04, male (% of male population) — 4.4% (2025)
• Population ages 0-14, female — 670,341 (2025)
• Population ages 0-14, female (% of female population) — 11.85% (2025)
• Population ages 0-14, male — 703,389 (2025)
• Population ages 0-14, male (% of male population) — 13.67% (2025)
• Population ages 0-14, total — 1.37 million (2025)
• Population ages 0-14 (% of total population) — 12.71% (2025)
• Population ages 05-09, female (% of female population) — 3.96% (2025)

Reading data like this

• Where to find free public data, and how to check it before you trust it — 2 min read
• Data analysis examples: 6 worked from one dataset — 3 min read
• Real change or random noise? A plain guide to reading your numbers — 2 min read

Questions people ask

What is Portugal's young people (ages 15-24) newly infected with HIV?

100 in 2024, according to the World Bank (World Development Indicators).

How has it changed since 1990?

It is down 92.86% from 1,400 in 1990 (7.47% a year on average, compounded). The highest value was 1,400 in 1990 and the lowest 100 in 2022.

How does Portugal rank?

81st highest of 131 economies with data for 2024.

Is the latest change in young people (ages 15-24) newly infected with HIV unusual for Portugal?

In 2024, Portugal's young people (ages 15-24) newly infected with HIV did not change 0% on 2023 (from 100 to 100). Across the 30 yearly changes before that (1994 to 2023), the average change was −6.6% and a typical year strayed about 14.5% from that (the standard deviation). This year's change was 0.5 standard deviations above that average, so it was an ordinary year: it sits within the range of normal year-to-year movement.

Source

World Bank, World Development Indicators, indicator SH.HIV.INCD.YG, licensed CC BY 4.0. Original source: UNAIDS estimates, Joint United Nations Programme on HIV/AIDS (UNAIDS), uri: https://aidsinfo.unaids.org/, publisher: UNAIDS, date accessed: 2025-08-27, date published: 2025-07 Figures are fetched from the World Bank API and refreshed monthly; see the series on data.worldbank.org. The full definition and method are in the World Bank's metadata glossary. Comparisons use the same World Bank release.

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