Brunei vs Iran: Share of one-year-olds who are vaccinated against polio
Brunei
99.0%
in 2024
Iran
99.0%
in 2024
Brunei rank
1st
Iran rank
1st
Share of one-year-olds who are vaccinated against polio over time
- Brunei
- Iran
How they compare
Brunei currently reports 99.0% against 99.0% in Iran, a difference of 0.0%.
The two have swapped places 11 times across 45 shared years of data; in 1980 it was Brunei ahead.
Brunei ranks 1st and Iran ranks 1st of 194 countries.
Across the 5 decades both report, Brunei averaged higher in 3 and Iran in 2.
Head to head by decade
| Decade | Brunei | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 90.9% | 57.6% | 33.3% | Brunei |
| 1990s | 97.1% | 96.2% | 0.9% | Brunei |
| 2000s | 96.6% | 98.0% | 1.4% | Iran |
| 2010s | 98.0% | 98.8% | 0.8% | Iran |
| 2020s | 99.0% | 98.8% | 0.2% | Brunei |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of one-year-olds who are vaccinated against polio, Brunei or Iran?
- Brunei, at 99.0% against 99.0% in Iran as of 2024.
- What is the difference in share of one-year-olds who are vaccinated against polio between Brunei and Iran?
- 0.0%, with Brunei ahead.
- How many years of comparable data are there for Brunei and Iran?
- 45 years are reported by both, from 1980 to 2024.
- How do Brunei and Iran rank globally for share of one-year-olds who are vaccinated against polio?
- Brunei ranks 1st and Iran ranks 1st of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2026); UN, World Population Prospects (2024) β processed by Our World in Data, published as Share of one-year-olds who are vaccinated against polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Share of one-year-olds who have had the third dose of either the oral or inactivated polio vaccine in a given year.