Diphtheria - number of reported cases, gaps filled in World

World: Diphtheria - number of reported cases, gaps filled was 30,206 in 2025. ◆ Volatile

Latest (2025)
30,206
Change on year
up 20.1%
Rank
1st
of 11 groups
All-time high
97,164
in 1980
All-time low
4,333
in 2006
Years of data
46
1980–2025

Diphtheria - number of reported cases, gaps filled in World, 1980–2025

020.0k40.0k60.0k80.0k100.0k198020022025

Source: Statizoid (derived).

Analysis

World recorded 30,206 for diphtheria - number of reported cases, gaps filled in 2025.

The figure is up 20.1% on the previous year and up 566.1% over ten years.

Over the whole period, diphtheria - number of reported cases, gaps filled in World peaked at 97,164 in 1980 and was at its lowest, 4,333, in 2006.

The series is highly variable year to year, so single readings are best treated with caution.

Diphtheria - number of reported cases, gaps filled in World, year by year

Annual values for Diphtheria - number of reported cases, gaps filled in World, 1980 to 2025.
Year Value Change
1980 97,164
1981 74,098 -23.7%
1982 60,040 -19.0%
1983 49,797 -17.1%
1984 45,235 -9.2%
1985 42,335 -6.4%
1986 29,132 -31.2%
1987 27,754 -4.7%
1988 31,526 +13.6%
1989 29,779 -5.5%
1990 22,133 -25.7%
1991 24,738 +11.8%
1992 20,851 -15.7%
1993 31,242 +49.8%
1994 54,816 +75.5%
1995 56,965 +3.9%
1996 28,624 -49.8%
1997 14,767 -48.4%
1998 7,441 -49.6%
1999 4,810 -35.4%
2000 11,625 +141.7%
2001 10,725 -7.7%
2002 9,035 -15.8%
2003 7,154 -20.8%
2004 10,069 +40.7%
2005 8,137 -19.2%
2006 4,333 -46.7%
2007 4,642 +7.1%
2008 4,978 +7.2%
2009 4,349 -12.6%
2010 4,603 +5.8%
2011 5,626 +22.2%
2012 4,490 -20.2%
2013 4,680 +4.2%
2014 7,774 +66.1%
2015 4,535 -41.7%
2016 7,102 +56.6%
2017 8,819 +24.2%
2018 16,911 +91.8%
2019 22,989 +35.9%
2020 10,137 -55.9%
2021 8,659 -14.6%
2022 10,027 +15.8%
2023 24,782 +147.2%
2024 25,147 +1.5%
2025 30,206 +20.1%

Averages by decade

DecadeAverage LowestHighest Years
1980s 48,686 27,754 97,164 10
1990s 26,639 4,810 56,965 10
2000s 7,505 4,333 11,625 10
2010s 8,753 4,490 22,989 10
2020s 18,160 8,659 30,206 6

Countries ranked near World

  1. 1 Nigeria 15,273 compare
  2. 2 Somalia 3,622 compare
  3. 3 India 3,249 compare
  4. 4 Niger 1,592 compare

See the full ranking of 222 places →

More health data for World

All data for World →

Frequently asked questions

What is diphtheria - number of reported cases, gaps filled in World?
Diphtheria - number of reported cases, gaps filled in World was 30,206 in 2025, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, gaps filled recorded in World?
The highest recorded value was 97,164 in 1980.
What is the lowest diphtheria - number of reported cases, gaps filled recorded in World?
The lowest recorded value was 4,333 in 2006.
How does World rank for diphtheria - number of reported cases, gaps filled?
World ranks 1st out of 11 groups with data for 2025.
Is diphtheria - number of reported cases, gaps filled rising or falling in World?
Over the last ten years it is up 566.1%. The long-run trend across the full record is volatile.
Where does this World data come from?
The figures come from Statizoid (derived), published as part of Diphtheria - number of reported cases, gaps filled. Statizoid updates them automatically from the source API.

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Diphtheria - number of reported cases, gaps filled in World. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-gaps-filled/world/

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How this figure is calculated

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.

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

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

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.