Congo vs Iran, Islamic Republic of: Diphtheria - number of reported cases, annual growth rate

Congo
-100 % change on previous year
in 2013
Iran, Islamic Republic of
-100 % change on previous year
in 2018
Congo rank
51st
Iran, Islamic Republic of rank
51st

Diphtheria - number of reported cases, annual growth rate over time

  • Congo
  • Iran, Islamic Republic of
-1000100200197519962018

How they compare

Congo currently reports -100 % change on previous year against -100 % change on previous year in Iran, Islamic Republic of, a difference of 0 % change on previous year.

The two have swapped places 4 times across 8 shared years of data; in 1975 it was Iran, Islamic Republic of ahead.

Congo ranks 51st and Iran, Islamic Republic of ranks 51st of 140 countries.

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

Head to head by decade

Decade Congo Iran, Islamic Republic of Difference Ahead
1970s -40 % change on previous year -28.07 % change on previous year 11.93 % change on previous year Iran, Islamic Republic of
1980s -16.67 % change on previous year 47.8 % change on previous year 64.46 % change on previous year Iran, Islamic Republic of
2010s -100 % change on previous year 26.67 % change on previous year 126.67 % change on previous year Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher diphtheria - number of reported cases, annual growth rate, Congo or Iran, Islamic Republic of?
Congo, at -100 % change on previous year against -100 % change on previous year in Iran, Islamic Republic of as of 2013.
What is the difference in diphtheria - number of reported cases, annual growth rate between Congo and Iran, Islamic Republic of?
0 % change on previous year, with Congo ahead.
How many years of comparable data are there for Congo and Iran, Islamic Republic of?
8 years are reported by both, from 1975 to 2013.
How do Congo and Iran, Islamic Republic of rank globally for diphtheria - number of reported cases, annual growth rate?
Congo ranks 51st and Iran, Islamic Republic of ranks 51st of 140 countries.
Where does this data come from?
Statizoid (derived), published as Diphtheria - number of reported cases, annual growth rate. 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, annual growth rate. Statizoid, drawing on Statizoid (derived). Retrieved 05 September 2026, from https://health.statizoid.com/compare/diphtheria-number-of-reported-cases-annual-growth-rate/congo-rep/iran-islamic-rep/

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About this data

Indicator
Diphtheria - number of reported cases, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
152 places, 3,361 data points, 1975–2025
Last refreshed

The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.