Iran vs Seychelles: Share of one-year-olds vaccinated against diphtheria, tetanus
Iran
98.0%
in 2025
Seychelles
98.0%
in 2025
Iran rank
20th
Seychelles rank
20th
Share of one-year-olds vaccinated against diphtheria, tetanus over time
- Iran
- Seychelles
How they compare
Iran currently reports 98.0% against 98.0% in Seychelles, a difference of 0.0%.
The two have swapped places 15 times across 45 shared years of data; in 1981 it was Iran ahead.
Iran ranks 20th and Seychelles ranks 20th of 195 countries.
Across the 5 decades both report, Iran averaged higher in 2 and Seychelles in 3.
Head to head by decade
| Decade | Iran | Seychelles | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 52.3% | 80.0% | 27.7% | Seychelles |
| 1990s | 96.4% | 97.7% | 1.3% | Seychelles |
| 2000s | 98.2% | 98.6% | 0.4% | Seychelles |
| 2010s | 98.8% | 98.1% | 0.7% | Iran |
| 2020s | 98.5% | 96.0% | 2.5% | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of one-year-olds vaccinated against diphtheria, tetanus and pertussis, Iran or Seychelles?
- Iran, at 98.0% against 98.0% in Seychelles as of 2025.
- What is the difference in share of one-year-olds vaccinated against diphtheria, tetanus and pertussis between Iran and Seychelles?
- 0.0%, with Iran ahead.
- How many years of comparable data are there for Iran and Seychelles?
- 45 years are reported by both, from 1981 to 2025.
- How do Iran and Seychelles rank globally for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis?
- Iran ranks 20th and Seychelles ranks 20th of 195 countries.
- Where does this data come from?
- WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data, published as Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis. 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 three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.