Which has higher diphtheria - number of reported cases, gaps filled, Congo or Iran, Islamic Republic of?

Congo, at 0 against 0 in Iran, Islamic Republic of as of 2023.

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

50 years are reported by both, from 1974 to 2023.

Where does this data come from?

Statizoid (derived), published as Diphtheria - number of reported cases, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Congo vs Iran, Islamic Republic of: Diphtheria - number of reported cases, gaps filled

Congo

in 2023

Iran, Islamic Republic of

in 2025

Congo rank

60th

Iran, Islamic Republic of rank

60th

Diphtheria - number of reported cases, gaps filled over time

Congo
Iran, Islamic Republic of

How they compare

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

The two have swapped places 2 times across 50 shared years of data; in 1974 it was Iran, Islamic Republic of ahead.

Congo ranks 60th and Iran, Islamic Republic of ranks 60th of 210 countries.

Across the 6 decades both report, Congo averaged higher in 1 and Iran, Islamic Republic of in 5.

Head to head by decade

Decade	Congo	Iran, Islamic Republic of	Difference	Ahead
1970s	1.83	1,016	1,014	Iran, Islamic Republic of
1980s	0.3	243.2	242.9	Iran, Islamic Republic of
1990s	0	92.2	92.2	Iran, Islamic Republic of
2000s	0	25.6	25.6	Iran, Islamic Republic of
2010s	0.1	63.1	63	Iran, Islamic Republic of
2020s	5	0	5	Congo

Averages of every year both report within each decade.

Frequently asked questions

Which has higher diphtheria - number of reported cases, gaps filled, Congo or Iran, Islamic Republic of?: Congo, at 0 against 0 in Iran, Islamic Republic of as of 2023.
What is the difference in diphtheria - number of reported cases, gaps filled between Congo and Iran, Islamic Republic of?: 0, with Congo ahead.
How many years of comparable data are there for Congo and Iran, Islamic Republic of?: 50 years are reported by both, from 1974 to 2023.
How do Congo and Iran, Islamic Republic of rank globally for diphtheria - number of reported cases, gaps filled?: Congo ranks 60th and Iran, Islamic Republic of ranks 60th of 210 countries.
Where does this data come from?: Statizoid (derived), published as Diphtheria - number of reported cases, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Congo vs Iran, Islamic Republic of: Diphtheria - number of reported cases, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/compare/diphtheria-number-of-reported-cases-gaps-filled/congo-rep/iran-islamic-rep/

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About this data

Indicator: Diphtheria - number of reported cases, gaps filled
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 222 places, 9,846 data points, 1974–2025
Last refreshed: 31 August 2026

Diphtheria - number of reported cases with 613 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.