What is the difference in paralytic polio: estimated cases by world region between Iran, Islamic Republic of and Portugal?

0 cases, with Iran, Islamic Republic of ahead.

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

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 Paralytic polio: estimated cases by world region. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Portugal: Paralytic polio: estimated cases by world region

Iran, Islamic Republic of

0 cases

in 2023

Portugal

0 cases

in 2023

Iran, Islamic Republic of rank

26th

Portugal rank

26th

Paralytic polio: estimated cases by world region over time

Iran, Islamic Republic of
Portugal

How they compare

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

The two have swapped places 1 time across 44 shared years of data; in 1980 it was Iran, Islamic Republic of ahead.

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

Iran, Islamic Republic of has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Iran, Islamic Republic of	Portugal	Difference	Ahead
1980s	609.7 cases	1.4 cases	608.3 cases	Iran, Islamic Republic of
1990s	312.9 cases	0 cases	312.9 cases	Iran, Islamic Republic of
2000s	2.1 cases	0 cases	2.1 cases	Iran, Islamic Republic of
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 paralytic polio: estimated cases by world region, Iran, Islamic Republic of or Portugal?: Iran, Islamic Republic of, at 0 cases against 0 cases in Portugal as of 2023.
What is the difference in paralytic polio: estimated cases by world region between Iran, Islamic Republic of and Portugal?: 0 cases, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Portugal?: 44 years are reported by both, from 1980 to 2023.
How do Iran, Islamic Republic of and Portugal rank globally for paralytic polio: estimated cases by world region?: Iran, Islamic Republic of ranks 26th and Portugal 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 Paralytic polio: estimated cases by world region. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Portugal: Paralytic polio: estimated cases by world region. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 08 September 2026, from https://reference.statizoid.com/compare/number-of-estimated-paralytic-polio-cases-by-world-region/iran-islamic-rep/portugal/

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<a href="https://reference.statizoid.com/compare/number-of-estimated-paralytic-polio-cases-by-world-region/iran-islamic-rep/portugal/">Iran, Islamic Republic of vs Portugal: Paralytic polio: estimated cases by world region</a> — Statizoid

About this data

Indicator: Paralytic polio: estimated cases by world region
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

Total estimated number of polio cases.