What is the difference in immunization, measles second dose between Iran, Islamic Republic of and Tonga?

0.0%, with Iran, Islamic Republic of ahead.

How many years of comparable data are there for Iran, Islamic Republic of and Tonga?

22 years are reported by both, from 2003 to 2024.

Where does this data come from?

WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as Immunization, measles second dose (% of children by the nationally recommended age). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Tonga: Immunization, measles second dose

Iran, Islamic Republic of

99.0%

in 2024

Tonga

99.0%

in 2024

Iran, Islamic Republic of rank

1st

Tonga rank

1st

Immunization, measles second dose over time

Iran, Islamic Republic of
Tonga

How they compare

Iran, Islamic Republic of currently reports 99.0% against 99.0% in Tonga, a difference of 0.0%.

The two have swapped places 6 times across 22 shared years of data; in 2003 it was Tonga ahead.

Iran, Islamic Republic of ranks 1st and Tonga ranks 1st of 178 countries.

Across the 3 decades both report, Iran, Islamic Republic of averaged higher in 1 and Tonga in 2.

Head to head by decade

Decade	Iran, Islamic Republic of	Tonga	Difference	Ahead
2000s	96.7%	98.1%	1.4%	Tonga
2010s	98.0%	97.8%	0.2%	Iran, Islamic Republic of
2020s	98.4%	99.0%	0.6%	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher immunization, measles second dose, Iran, Islamic Republic of or Tonga?: Iran, Islamic Republic of, at 99.0% against 99.0% in Tonga as of 2024.
What is the difference in immunization, measles second dose between Iran, Islamic Republic of and Tonga?: 0.0%, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Tonga?: 22 years are reported by both, from 2003 to 2024.
How do Iran, Islamic Republic of and Tonga rank globally for immunization, measles second dose?: Iran, Islamic Republic of ranks 1st and Tonga ranks 1st of 178 countries.
Where does this data come from?: WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as Immunization, measles second dose (% of children by the nationally recommended age). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Tonga: Immunization, measles second dose. 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-measles-second-dose-percent-of-children-by-the-nationally-recommended-age/iran-islamic-rep/tonga/

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<a href="https://health.statizoid.com/compare/immunization-measles-second-dose-percent-of-children-by-the-nationally-recommended-age/iran-islamic-rep/tonga/">Iran, Islamic Republic of vs Tonga: Immunization, measles second dose</a> — Statizoid

About this data

Indicator: Immunization, measles second dose (% of children by the nationally recommended age)
Unit: % of children by the nationally recommended age
Source: WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 221 places, 4,472 data points, 1997–2024
Last refreshed: 03 September 2026

Child immunization, measles second dose, measures the percentage of children who received two dose of measles containing vaccine according to nationally recommended schedule through routine immunization services in a given year.