What is the difference in reported versus estimated cases of polio between Iran, Islamic Republic of and Thailand?

0 cases, with Iran, Islamic Republic of ahead.

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

44 years are reported by both, from 1980 to 2023.

Where does this data come from?

World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported versus estimated cases of polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Thailand: Reported versus estimated cases of polio

Iran, Islamic Republic of

0 cases

in 2023

Thailand

0 cases

in 2023

Iran, Islamic Republic of rank

26th

Thailand rank

26th

Reported versus estimated cases of polio over time

Iran, Islamic Republic of
Thailand

How they compare

Iran, Islamic Republic of currently reports 0 cases against 0 cases in Thailand, a difference of 0 cases.

The two have swapped places 6 times across 44 shared years of data; in 1980 it was Thailand ahead.

Iran, Islamic Republic of ranks 26th and Thailand ranks 26th of 199 countries.

Across the 5 decades both report, Iran, Islamic Republic of averaged higher in 1 and Thailand in 2.

Head to head by decade

Decade	Iran, Islamic Republic of	Thailand	Difference	Ahead
1980s	87.1 cases	127.2 cases	40.1 cases	Thailand
1990s	44.7 cases	10.3 cases	34.4 cases	Iran, Islamic Republic of
2000s	0.3 cases	2 cases	1.7 cases	Thailand
2010s	0 cases	0 cases	0 cases	—
2020s	0 cases	0 cases	0 cases	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher reported versus estimated cases of polio, Iran, Islamic Republic of or Thailand?: Iran, Islamic Republic of, at 0 cases against 0 cases in Thailand as of 2023.
What is the difference in reported versus estimated cases of polio between Iran, Islamic Republic of and Thailand?: 0 cases, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Thailand?: 44 years are reported by both, from 1980 to 2023.
How do Iran, Islamic Republic of and Thailand rank globally for reported versus estimated cases of polio?: Iran, Islamic Republic of ranks 26th and Thailand ranks 26th of 199 countries.
Where does this data come from?: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported versus estimated cases of polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Thailand: Reported versus estimated cases of polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 01 September 2026, from https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/iran-islamic-rep/thailand/

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<a href="https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/iran-islamic-rep/thailand/">Iran, Islamic Republic of vs Thailand: Reported versus estimated cases of polio</a> — Statizoid

About this data

Indicator: Reported versus estimated cases of polio
Unit: cases
Source: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 199 places, 7,608 data points, 1980–2023
Last refreshed: 28 August 2026

Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases.