Sao Tome and Principe vs Zambia: Inactivated first-dose polio vaccine (IPV1) immunization coverage
Sao Tome and Principe
87.0%
in 2025
Zambia
87.0%
in 2025
Sao Tome and Principe rank
131st
Zambia rank
131st
Inactivated first-dose polio vaccine (IPV1) immunization coverage 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 2 times across 11 shared years of data; in 2015 it was Zambia ahead.
Sao Tome and Principe ranks 131st and Zambia ranks 131st 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 | 61.0% | 21.8% | 39.2% | Sao Tome and Principe |
| 2020s | 88.2% | 80.7% | 7.5% | Sao Tome and Principe |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher inactivated first-dose polio vaccine (ipv1) immunization coverage, Sao Tome and Principe or Zambia?
- Sao Tome and Principe, at 87.0% against 87.0% in Zambia as of 2025.
- What is the difference in inactivated first-dose polio vaccine (ipv1) immunization coverage 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?
- 11 years are reported by both, from 2015 to 2025.
- How do Sao Tome and Principe and Zambia rank globally for inactivated first-dose polio vaccine (ipv1) immunization coverage?
- Sao Tome and Principe ranks 131st and Zambia ranks 131st of 194 countries.
- Where does this data come from?
- World Health Organization, Global Health Observatory, published as Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC). Statizoid refreshes it automatically from the source and publishes the full history for both places.