Sudan vs Yemen: Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus
Sudan
762,834 one-year-olds
in 2023
Yemen
697,470 one-year-olds
in 2023
Sudan rank
6th
Yemen rank
8th
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus over time
- Sudan
- Yemen
How they compare
Sudan currently reports 762,834 one-year-olds against 697,470 one-year-olds in Yemen, a difference of 65,364 one-year-olds.
That makes Sudan's figure about 1.1 times Yemen's.
The two have swapped places 6 times across 44 shared years of data; in 1980 it was Sudan ahead.
Sudan ranks 6th and Yemen ranks 8th of 194 countries.
Across the 5 decades both report, Sudan averaged higher in 3 and Yemen in 2.
Head to head by decade
| Decade | Sudan | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 621,696 one-year-olds | 415,555 one-year-olds | 206,142 one-year-olds | Sudan |
| 1990s | 429,867 one-year-olds | 311,870 one-year-olds | 117,997 one-year-olds | Sudan |
| 2000s | 286,648 one-year-olds | 208,649 one-year-olds | 77,998 one-year-olds | Sudan |
| 2010s | 93,311 one-year-olds | 356,027 one-year-olds | 262,716 one-year-olds | Yemen |
| 2020s | 351,844 one-year-olds | 570,987 one-year-olds | 219,143 one-year-olds | Yemen |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, Sudan or Yemen?
- Sudan, at 762,834 one-year-olds against 697,470 one-year-olds in Yemen as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus between Sudan and Yemen?
- 65,364 one-year-olds, with Sudan ahead.
- How many years of comparable data are there for Sudan and Yemen?
- 44 years are reported by both, from 1980 to 2023.
- How do Sudan and Yemen rank globally for number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus?
- Sudan ranks 6th and Yemen ranks 8th of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.