Diphtheria - number of reported cases, annual growth rate in Vietnam

Vietnam: Diphtheria - number of reported cases, annual growth rate was -72.73 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-72.73 % change on previous year
Change on year
up 9.5%
World rank
45th
of 140 countries
All-time high
347.17 % change on previous year
in 2020
All-time low
-97.47 % change on previous year
in 2021
Years of data
50
1975–2025

Diphtheria - number of reported cases, annual growth rate in Vietnam, 1975–2025

-1000100200300197520002025

Source: Statizoid (derived). Measured in % change on previous year.

Analysis

In 2025, diphtheria - number of reported cases, annual growth rate in Vietnam stood at -72.73 % change on previous year.

That represents a change of up 9.5% on the previous year and down 1,063.6% over ten years.

Over the whole period, diphtheria - number of reported cases, annual growth rate in Vietnam peaked at 347.17 % change on previous year in 2020 and was at its lowest, -97.47 % change on previous year, in 2021.

That places Vietnam 45th out of 140 countries with data for 2025, putting it in the middle of the range.

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

Diphtheria - number of reported cases, annual growth rate in Vietnam, year by year

Annual values for Diphtheria - number of reported cases, annual growth rate in Vietnam, 1975 to 2025.
Year % change on previous year Change
1975 76.56 % change on previous year —
1976 197.97 % change on previous year +158.6%
1977 12.6 % change on previous year -93.6%
1978 -1.21 % change on previous year -109.6%
1979 -46.48 % change on previous year +3736.5%
1980 32.16 % change on previous year -169.2%
1981 55.38 % change on previous year +72.2%
1982 8.67 % change on previous year -84.3%
1983 19.38 % change on previous year +123.5%
1984 -31.49 % change on previous year -262.5%
1985 -1.17 % change on previous year -96.3%
1986 -16.39 % change on previous year +1298.5%
1987 -7.45 % change on previous year -54.6%
1988 -46.2 % change on previous year +520.3%
1989 -34.99 % change on previous year -24.2%
1990 -20.34 % change on previous year -41.9%
1991 0.3929 % change on previous year -101.9%
1992 -2.74 % change on previous year -797.3%
1993 -66.4 % change on previous year +2323.5%
1994 -0.5988 % change on previous year -99.1%
1995 0.6024 % change on previous year -200.6%
1996 -14.37 % change on previous year -2485.6%
1997 6.29 % change on previous year -143.8%
1998 -14.47 % change on previous year -330.0%
1999 -37.69 % change on previous year +160.4%
2000 39.51 % change on previous year -204.8%
2001 17.7 % change on previous year -55.2%
2002 -21.05 % change on previous year -218.9%
2003 0 % change on previous year -100.0%
2004 -53.33 % change on previous year —
2005 -26.53 % change on previous year -50.3%
2006 -30.56 % change on previous year +15.2%
2007 28 % change on previous year -191.6%
2008 -46.88 % change on previous year -267.4%
2009 -52.94 % change on previous year +12.9%
2010 -25 % change on previous year -52.8%
2011 116.67 % change on previous year -566.7%
2012 -7.69 % change on previous year -106.6%
2013 -8.33 % change on previous year +8.3%
2014 45.45 % change on previous year -645.5%
2015 -6.25 % change on previous year -113.8%
2016 -13.33 % change on previous year +113.3%
2017 61.54 % change on previous year -561.5%
2018 -38.1 % change on previous year -161.9%
2019 307.69 % change on previous year -907.7%
2020 347.17 % change on previous year +12.8%
2021 -97.47 % change on previous year -128.1%
2022 -66.67 % change on previous year -31.6%
2024 -80.36 % change on previous year +20.5%
2025 -72.73 % change on previous year -9.5%

Vietnam compared with similar countries

  • Vietnam's -72.73 % change on previous year is above the median for upper middle income countries, which is -100 % change on previous year, 73% of the median. (42 countries reporting)
  • Vietnam's -72.73 % change on previous year is above the median for East Asia & Pacific, which is -100 % change on previous year, 73% of the median. (19 countries reporting)

Biggest year-on-year movements

Years where Diphtheria - number of reported cases, annual growth rate in Vietnam changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
1979 -3736.5% -1.21 % change on previous year -46.48 % change on previous year
1996 -2485.6% 0.6024 % change on previous year -14.37 % change on previous year
1993 -2323.5% -2.74 % change on previous year -66.4 % change on previous year
1986 -1298.5% -1.17 % change on previous year -16.39 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1970s 47.88 % change on previous year -46.48 % change on previous year 197.97 % change on previous year 5
1980s -2.21 % change on previous year -46.2 % change on previous year 55.38 % change on previous year 10
1990s -14.93 % change on previous year -66.4 % change on previous year 6.29 % change on previous year 10
2000s -14.61 % change on previous year -53.33 % change on previous year 39.51 % change on previous year 10
2010s 43.26 % change on previous year -38.1 % change on previous year 307.69 % change on previous year 10
2020s 5.99 % change on previous year -97.47 % change on previous year 347.17 % change on previous year 5

Countries ranked near Vietnam

  1. 43 Kenya -60 % change on previous year compare
  2. 44 Norway -71.43 % change on previous year compare
  3. 46 Indonesia -73.06 % change on previous year compare
  4. 47 Latvia -80 % change on previous year compare
  5. 48 Rwanda -92.86 % change on previous year compare

See the full ranking of 152 places →

More health data for Vietnam

All data for Vietnam →

Frequently asked questions

What is diphtheria - number of reported cases, annual growth rate in Vietnam?
Diphtheria - number of reported cases, annual growth rate in Vietnam was -72.73 % change on previous year in 2025, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, annual growth rate recorded in Vietnam?
The highest recorded value was 347.17 % change on previous year in 2020.
What is the lowest diphtheria - number of reported cases, annual growth rate recorded in Vietnam?
The lowest recorded value was -97.47 % change on previous year in 2021.
How does Vietnam rank for diphtheria - number of reported cases, annual growth rate?
Vietnam ranks 45th out of 140 countries with data for 2025.
Is diphtheria - number of reported cases, annual growth rate rising or falling in Vietnam?
Over the last ten years it is down 1,063.6%. The long-run trend across the full record is volatile.
Where does this Vietnam data come from?
The figures come from Statizoid (derived), published as part of Diphtheria - number of reported cases, annual growth rate. Statizoid updates them automatically from the source API.

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Diphtheria - number of reported cases, annual growth rate in Vietnam. Statizoid, drawing on Statizoid (derived). Retrieved 11 November 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-annual-growth-rate/viet-nam/

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How this figure is calculated

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.

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, 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.