Tanzania, United Republic of vs Yemen: Number of one-year-olds who are not vaccinated against polio
Tanzania, United Republic of
441,878 one-year-olds
in 2023
Yemen
697,470 one-year-olds
in 2023
Tanzania, United Republic of rank
11th
Yemen rank
8th
Number of one-year-olds who are not vaccinated against polio over time
- Tanzania, United Republic of
- Yemen
How they compare
Yemen currently reports 697,470 one-year-olds against 441,878 one-year-olds in Tanzania, United Republic of, a difference of 255,592 one-year-olds.
That makes Yemen's figure about 1.6 times Tanzania, United Republic of's.
The two have swapped places 10 times across 44 shared years of data; in 1980 it was Yemen ahead.
Tanzania, United Republic of ranks 11th and Yemen ranks 8th of 194 countries.
Across the 5 decades both report, Tanzania, United Republic of averaged higher in 1 and Yemen in 4.
Head to head by decade
| Decade | Tanzania, United Republic of | Yemen | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 331,003 one-year-olds | 415,555 one-year-olds | 84,552 one-year-olds | Yemen |
| 1990s | 223,192 one-year-olds | 311,870 one-year-olds | 88,679 one-year-olds | Yemen |
| 2000s | 192,798 one-year-olds | 208,599 one-year-olds | 15,801 one-year-olds | Yemen |
| 2010s | 182,477 one-year-olds | 351,214 one-year-olds | 168,737 one-year-olds | Yemen |
| 2020s | 602,182 one-year-olds | 570,987 one-year-olds | 31,195 one-year-olds | Tanzania, United Republic of |
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 polio, Tanzania, United Republic of or Yemen?
- Yemen, at 697,470 one-year-olds against 441,878 one-year-olds in Tanzania, United Republic of as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against polio between Tanzania, United Republic of and Yemen?
- 255,592 one-year-olds, with Yemen ahead.
- How many years of comparable data are there for Tanzania, United Republic of and Yemen?
- 44 years are reported by both, from 1980 to 2023.
- How do Tanzania, United Republic of and Yemen rank globally for number of one-year-olds who are not vaccinated against polio?
- Tanzania, United Republic of ranks 11th 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 polio. 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 the third dose of either the oral or inactivated polio vaccine in a given year.