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

0 cases, with Iran, Islamic Republic of ahead.

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

19 years are reported by both, from 1980 to 2000.

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 Naoero: Reported versus estimated cases of polio

Iran, Islamic Republic of

0 cases

in 2023

Naoero

0 cases

in 2000

Iran, Islamic Republic of rank

26th

Naoero rank

26th

Reported versus estimated cases of polio over time

Iran, Islamic Republic of
Naoero

How they compare

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

Across all 19 years both countries report, Iran, Islamic Republic of has been ahead every year.

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

Iran, Islamic Republic of has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Iran, Islamic Republic of	Naoero	Difference	Ahead
1980s	90.89 cases	0.1111 cases	90.78 cases	Iran, Islamic Republic of
1990s	49.22 cases	0 cases	49.22 cases	Iran, Islamic Republic of
2000s	3 cases	0 cases	3 cases	Iran, Islamic Republic of

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 Naoero?: Iran, Islamic Republic of, at 0 cases against 0 cases in Naoero as of 2023.
What is the difference in reported versus estimated cases of polio between Iran, Islamic Republic of and Naoero?: 0 cases, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Naoero?: 19 years are reported by both, from 1980 to 2000.
How do Iran, Islamic Republic of and Naoero rank globally for reported versus estimated cases of polio?: Iran, Islamic Republic of ranks 26th and Naoero 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 Naoero: Reported versus estimated cases of polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 03 September 2026, from https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/iran-islamic-rep/naoero/

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Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

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