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Diphtheria - number of reported cases in Sierra Leone

Sierra Leone: Diphtheria - number of reported cases was 0 in 2025. ◆ Volatile

Latest (2025)
0
World rank
60th
of 210 countries
All-time high
804
in 1984
All-time low
0
in 1980
Years of data
14
1980–2025

Diphtheria - number of reported cases in Sierra Leone, 1980–2025

02004006008001980200220251980: 01981: 01984: 8041985: 01986: 01987: 101997: 02000: 02003: 02005: 02006: 02007: 02021: 02025: 0

Source: World Health Organization, Global Health Observatory.

Analysis

The most recent figure for diphtheria - number of reported cases in Sierra Leone is 0, measured in 2025. That is the lowest value across all 14 years on record.

Over the whole period, diphtheria - number of reported cases in Sierra Leone peaked at 804 in 1984 and was at its lowest, 0, in 1980.

That places Sierra Leone 60th out of 210 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 in Sierra Leone, year by year

Year Value Change
1980 0 —
1981 0 —
1984 804 —
1985 0 -100.0%
1986 0 —
1987 10 —
1997 0 -100.0%
2000 0 —
2003 0 —
2005 0 —
2006 0 —
2007 0 —
2021 0 —
2025 0 —

Averages by decade

DecadeAverage LowestHighest Years
1980s 135.67 0 804 6
1990s 0 0 0 1
2000s 0 0 0 5
2020s 0 0 0 2

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See the full ranking of 222 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is diphtheria - number of reported cases in Sierra Leone?
Diphtheria - number of reported cases in Sierra Leone was 0 in 2025, according to World Health Organization, Global Health Observatory.
What is the highest diphtheria - number of reported cases recorded in Sierra Leone?
The highest recorded value was 804 in 1984.
What is the lowest diphtheria - number of reported cases recorded in Sierra Leone?
The lowest recorded value was 0 in 1980.
How does Sierra Leone rank for diphtheria - number of reported cases?
Sierra Leone ranks 60th out of 210 countries with data for 2025.
Where does this Sierra Leone data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Diphtheria - number of reported cases. Statizoid updates them automatically from the source API.

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Diphtheria - number of reported cases in Sierra Leone. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 24 August 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases/sierra-leone/

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About this data

Indicator
Diphtheria - number of reported cases
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
222 places, 9,233 data points, 1974–2025
Last refreshed