Portugal vs Tonga: Immunization, Pol3

Portugal
99.0%
in 2024
Tonga
99.0%
in 2024
Portugal rank
1st
Tonga rank
1st

Immunization, Pol3 over time

  • Portugal
  • Tonga
20406080100198020022024

How they compare

Portugal currently reports 99.0% against 99.0% in Tonga, a difference of 0.0%.

The two have swapped places 12 times across 45 shared years of data; in 1980 it was Tonga ahead.

Portugal ranks 1st and Tonga ranks 1st of 193 countries.

Across the 5 decades both report, Portugal averaged higher in 1 and Tonga in 3.

Head to head by decade

Decade Portugal Tonga Difference Ahead
1980s 45.0% 66.6% 21.6% Tonga
1990s 94.1% 94.9% 0.8% Tonga
2000s 95.8% 97.2% 1.4% Tonga
2010s 98.0% 97.9% 0.1% Portugal
2020s 99.0% 99.0% 0.0%

Averages of every year both report within each decade.

Frequently asked questions

Which has higher immunization, pol3, Portugal or Tonga?
Portugal, at 99.0% against 99.0% in Tonga as of 2024.
What is the difference in immunization, pol3 between Portugal and Tonga?
0.0%, with Portugal ahead.
How many years of comparable data are there for Portugal and Tonga?
45 years are reported by both, from 1980 to 2024.
How do Portugal and Tonga rank globally for immunization, pol3?
Portugal ranks 1st and Tonga ranks 1st 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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Portugal vs Tonga: 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/portugal/tonga/

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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.