Diphtheria - number of reported cases, gaps filled in Nigeria

Nigeria: Diphtheria - number of reported cases, gaps filled was 15,273 in 2025. ◆ Volatile

Latest (2025)
15,273
Change on year
up 44.2%
World rank
1st
of 210 countries
All-time high
15,273
in 2025
All-time low
0
in 2011
Years of data
43
1974–2025

Diphtheria - number of reported cases, gaps filled in Nigeria, 1974–2025

05.0k10.0k15.0k1974199920251974: 1291975: 321976: 3331977: 1.1k1978: 4551979: 2741980: 1651981: 1641982: 1.2k1983: 2751984: 7331985: 2.0k1986: 1.9k1987: 7151988: 1.9k1989: 5.0k1990: 1.8k1991: 2.8k1992: 2.4k1993: 2.0k1994: 4691995: 1.2k1996: 2.0k1997: 1.4k1998: 7081999: 2.4k2000: 4.0k2001: 2.5k2002: 7902003: 670.52004: 5512005: 431.52006: 3122011: 02017: 02018: 1.9k2019: 2.3k2020: 5.3k2021: 8.2k2022: 11.2k2023: 14.2k2024: 10.6k2025: 15.3k

Source: Statizoid (derived).

Analysis

The most recent figure for diphtheria - number of reported cases, gaps filled in Nigeria is 15,273, measured in 2025. That is the highest value across all 43 years on record.

That represents a change of up 44.2% on the previous year and up 190.5% over five years.

Over the whole period, diphtheria - number of reported cases, gaps filled in Nigeria peaked at 15,273 in 2025 and was at its lowest, 0, in 2011.

Nigeria ranks 1st of 210 countries on this measure, in the top 10%.

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

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

Annual values for Diphtheria - number of reported cases, gaps filled in Nigeria, 1974 to 2025.
Year Value Change
1974 129
1975 32 -75.2%
1976 333 +940.6%
1977 1,050 +215.3%
1978 455 -56.7%
1979 274 -39.8%
1980 165 -39.8%
1981 164 -0.6%
1982 1,170 +613.4%
1983 275 -76.5%
1984 733 +166.5%
1985 1,996 +172.3%
1986 1,871 -6.3%
1987 715 -61.8%
1988 1,930 +169.9%
1989 5,039 +161.1%
1990 1,768 -64.9%
1991 2,849 +61.1%
1992 2,351 -17.5%
1993 2,042 -13.1%
1994 469 -77.0%
1995 1,242 +164.9%
1996 2,016 +62.3%
1997 1,362 -32.4%
1998 708 -48.0%
1999 2,352 +232.1%
2000 3,995 +69.9%
2001 2,468 -38.2%
2002 790 -68.0%
2003 670.5 -15.1%
2004 551 -17.8%
2005 431.5 -21.7%
2006 312 -27.7%
2011 0 -100.0%
2017 0
2018 1,870
2019 2,289 +22.4%
2020 5,258 +129.7%
2021 8,226 +56.5%
2022 11,194 +36.1%
2023 14,163 +26.5%
2024 10,595 -25.2%
2025 15,273 +44.2%

Averages by decade

DecadeAverage LowestHighest Years
1970s 378.83 32 1,050 6
1980s 1,406 164 5,039 10
1990s 1,716 469 2,849 10
2000s 1,317 312 3,995 7
2010s 1,040 0 2,289 4
2020s 10,785 5,258 15,273 6

Countries ranked near Nigeria

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

See the full ranking of 222 places →

More health data for Nigeria

All data for Nigeria →

Frequently asked questions

What is diphtheria - number of reported cases, gaps filled in Nigeria?
Diphtheria - number of reported cases, gaps filled in Nigeria was 15,273 in 2025, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, gaps filled recorded in Nigeria?
The highest recorded value was 15,273 in 2025.
What is the lowest diphtheria - number of reported cases, gaps filled recorded in Nigeria?
The lowest recorded value was 0 in 2011.
How does Nigeria rank for diphtheria - number of reported cases, gaps filled?
Nigeria ranks 1st out of 210 countries with data for 2025.
Where does this Nigeria 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 Nigeria. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-gaps-filled/nigeria/

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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.