Samoa vs Sao Tome and Principe: Immunization, Pol3

Samoa
85.0%
in 2024
Sao Tome and Principe
85.0%
in 2024
Samoa rank
128th
Sao Tome and Principe rank
128th

Immunization, Pol3 over time

  • Samoa
  • Sao Tome and Principe
20406080100198020022024

How they compare

Samoa currently reports 85.0% against 85.0% in Sao Tome and Principe, a difference of 0.0%.

The two have swapped places 3 times across 44 shared years of data; in 1981 it was Samoa ahead.

Samoa ranks 128th and Sao Tome and Principe ranks 128th of 193 countries.

Across the 5 decades both report, Samoa averaged higher in 2 and Sao Tome and Principe in 3.

Head to head by decade

Decade Samoa Sao Tome and Principe Difference Ahead
1980s 85.9% 56.9% 29.0% Samoa
1990s 92.7% 74.5% 18.2% Samoa
2000s 71.0% 95.2% 24.2% Sao Tome and Principe
2010s 72.1% 95.9% 23.8% Sao Tome and Principe
2020s 82.8% 89.2% 6.4% Sao Tome and Principe

Averages of every year both report within each decade.

Frequently asked questions

Which has higher immunization, pol3, Samoa or Sao Tome and Principe?
Samoa, at 85.0% against 85.0% in Sao Tome and Principe as of 2024.
What is the difference in immunization, pol3 between Samoa and Sao Tome and Principe?
0.0%, with Samoa ahead.
How many years of comparable data are there for Samoa and Sao Tome and Principe?
44 years are reported by both, from 1981 to 2024.
How do Samoa and Sao Tome and Principe rank globally for immunization, pol3?
Samoa ranks 128th and Sao Tome and Principe ranks 128th of 193 countries.
Where does this data come from?
WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as Immunization, Pol3 (% of one-year-old children). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Samoa vs Sao Tome and Principe: Immunization, Pol3. Statizoid, drawing on WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/). Retrieved 13 September 2026, from https://health.statizoid.com/compare/immunization-pol3-percent-of-one-year-old-children/samoa/sao-tome-and-principe/

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About this data

Indicator
Immunization, Pol3 (% of one-year-old children)
Unit
% of one-year-old children
Source
WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/)
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
236 places, 9,949 data points, 1980–2024
Last refreshed

Child immunization rate, polio, is the percentage of children ages 12-23 months who received polio vaccinations before 12 months or at any time before the survey. A child is considered adequately immunized after three doses.