Sao Tome and Principe vs Zambia: Share of one-year-olds who received the inactivated polio vaccine
Sao Tome and Principe
87.0%
in 2024
Zambia
87.0%
in 2024
Sao Tome and Principe rank
127th
Zambia rank
127th
Share of one-year-olds who received the inactivated polio vaccine over time
- Sao Tome and Principe
- Zambia
How they compare
Sao Tome and Principe currently reports 87.0% against 87.0% in Zambia, a difference of 0.0%.
The two have swapped places 1 time across 7 shared years of data; in 2018 it was Sao Tome and Principe ahead.
Sao Tome and Principe ranks 127th and Zambia ranks 127th of 194 countries.
Sao Tome and Principe has averaged higher in every one of the 2 decades both report.
Head to head by decade
| Decade | Sao Tome and Principe | Zambia | Difference | Ahead |
|---|---|---|---|---|
| 2010s | 96.0% | 54.5% | 41.5% | Sao Tome and Principe |
| 2020s | 88.4% | 81.2% | 7.2% | Sao Tome and Principe |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of one-year-olds who received the inactivated polio vaccine, Sao Tome and Principe or Zambia?
- Sao Tome and Principe, at 87.0% against 87.0% in Zambia as of 2024.
- What is the difference in share of one-year-olds who received the inactivated polio vaccine between Sao Tome and Principe and Zambia?
- 0.0%, with Sao Tome and Principe ahead.
- How many years of comparable data are there for Sao Tome and Principe and Zambia?
- 7 years are reported by both, from 2018 to 2024.
- How do Sao Tome and Principe and Zambia rank globally for share of one-year-olds who received the inactivated polio vaccine?
- Sao Tome and Principe ranks 127th and Zambia ranks 127th 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 Share of one-year-olds who received the inactivated polio vaccine. 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 first dose of the inactivated polio vaccine in a given year.