What is the difference in reported paralytic polio cases per million between Congo and Iran?

0 cases per million, with Congo ahead.

How many years of comparable data are there for Congo and Iran?

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

Where does this data come from?

World Health Organization (2019); World Health Organization (2024); Population based on various sources (2023) – with major processing by Our World in Data, published as Reported paralytic polio cases per million. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Congo vs Iran: Reported paralytic polio cases per million

Congo

0 cases per million

in 2023

Iran

0 cases per million

in 2023

Congo rank

26th

Iran rank

26th

Reported paralytic polio cases per million over time

Congo
Iran

How they compare

Congo currently reports 0 cases per million against 0 cases per million in Iran, a difference of 0 cases per million.

The two have swapped places 7 times across 44 shared years of data; in 1980 it was Congo ahead.

Congo ranks 26th and Iran ranks 26th of 199 countries.

Across the 5 decades both report, Congo averaged higher in 4 and Iran in 1.

Head to head by decade

Decade	Congo	Iran	Difference	Ahead
1980s	11.29 cases per million	2 cases per million	9.29 cases per million	Congo
1990s	0.3315 cases per million	0.7473 cases per million	0.4158 cases per million	Iran
2000s	1.5 cases per million	0.0046 cases per million	1.5 cases per million	Congo
2010s	9.96 cases per million	0 cases per million	9.96 cases per million	Congo
2020s	0.2152 cases per million	0 cases per million	0.2152 cases per million	Congo

Averages of every year both report within each decade.

Frequently asked questions

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

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Congo vs Iran: Reported paralytic polio cases per million. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024); Population based on various sources (2023) – with major processing by Our World in Data. Retrieved 29 September 2026, from https://reference.statizoid.com/compare/reported-paralytic-polio-cases-per-1-million-people/congo-rep/iran-islamic-rep/

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<a href="https://reference.statizoid.com/compare/reported-paralytic-polio-cases-per-1-million-people/congo-rep/iran-islamic-rep/">Congo vs Iran: Reported paralytic polio cases per million</a> — Statizoid

About this data

Indicator: Reported paralytic polio cases per million
Unit: cases per million
Source: World Health Organization (2019); World Health Organization (2024); Population based on various sources (2023) – with major processing 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: 18 September 2026

Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases per million people.