Diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region)
South-East Asia (WHO region): Diphtheria - number of reported cases, gaps filled was 3,416 in 2025. ◆ Volatile
Diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region), 1980–2025
Source: Statizoid (derived).
Analysis
South-East Asia (WHO region) recorded 3,416 for diphtheria - number of reported cases, gaps filled in 2025.
The figure is down 41.0% on the previous year and up 36.4% over ten years.
Over the whole period, diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region) peaked at 43,680 in 1980 and was at its lowest, 1,771, in 2021.
The series is highly variable year to year, so single readings are best treated with caution.
Diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region), year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 43,680 | — |
| 1981 | 29,504 | -32.5% |
| 1982 | 21,091 | -28.5% |
| 1983 | 19,074 | -9.6% |
| 1984 | 20,970 | +9.9% |
| 1985 | 18,089 | -13.7% |
| 1986 | 11,362 | -37.2% |
| 1987 | 13,843 | +21.8% |
| 1988 | 17,546 | +26.7% |
| 1989 | 12,710 | -27.6% |
| 1990 | 9,382 | -26.2% |
| 1991 | 13,535 | +44.3% |
| 1992 | 9,084 | -32.9% |
| 1993 | 7,753 | -14.7% |
| 1994 | 3,437 | -55.7% |
| 1995 | 4,490 | +30.6% |
| 1996 | 4,109 | -8.5% |
| 1997 | 2,194 | -46.6% |
| 1998 | 2,077 | -5.3% |
| 1999 | 2,056 | -1.0% |
| 2000 | 5,447 | +164.9% |
| 2001 | 6,011 | +10.4% |
| 2002 | 5,545 | -7.8% |
| 2003 | 4,517 | -18.5% |
| 2004 | 8,677 | +92.1% |
| 2005 | 6,003 | -30.8% |
| 2006 | 2,945 | -50.9% |
| 2007 | 3,950 | +34.1% |
| 2008 | 4,180 | +5.8% |
| 2009 | 3,860 | -7.7% |
| 2010 | 3,688 | -4.5% |
| 2011 | 4,373 | +18.6% |
| 2012 | 2,761 | -36.9% |
| 2013 | 3,305 | +19.7% |
| 2014 | 7,236 | +118.9% |
| 2015 | 2,504 | -65.4% |
| 2016 | 3,674 | +46.7% |
| 2017 | 6,099 | +66.0% |
| 2018 | 9,273 | +52.0% |
| 2019 | 9,729 | +4.9% |
| 2020 | 3,743 | -61.5% |
| 2021 | 1,771 | -52.7% |
| 2022 | 3,418 | +93.0% |
| 2023 | 3,978 | +16.4% |
| 2024 | 5,793 | +45.6% |
| 2025 | 3,416 | -41.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 20,787 | 11,362 | 43,680 | 10 |
| 1990s | 5,812 | 2,056 | 13,535 | 10 |
| 2000s | 5,114 | 2,945 | 8,677 | 10 |
| 2010s | 5,264 | 2,504 | 9,729 | 10 |
| 2020s | 3,686 | 1,771 | 5,793 | 6 |
Countries ranked near South-East Asia (WHO region)
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Frequently asked questions
- What is diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region)?
- Diphtheria - number of reported cases, gaps filled in South-East Asia (WHO region) was 3,416 in 2025, according to Statizoid (derived).
- What is the highest diphtheria - number of reported cases, gaps filled recorded in South-East Asia (WHO region)?
- The highest recorded value was 43,680 in 1980.
- What is the lowest diphtheria - number of reported cases, gaps filled recorded in South-East Asia (WHO region)?
- The lowest recorded value was 1,771 in 2021.
- How does South-East Asia (WHO region) rank for diphtheria - number of reported cases, gaps filled?
- South-East Asia (WHO region) ranks 6th out of 11 groups with data for 2025.
- Is diphtheria - number of reported cases, gaps filled rising or falling in South-East Asia (WHO region)?
- Over the last ten years it is up 36.4%. The long-run trend across the full record is volatile.
- Where does this South-East Asia (WHO region) 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.
Download this data
CSV · JSON — 46 observations, free to reuse under Derived by Statizoid from the sources named on the page.
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
- Diphtheria - number of reported cases World Health Organization, Global Health Observatory
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
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.