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Cholera case-fatality rate in Tanzania

Tanzania: Cholera case-fatality rate was 0.0% in 2021. ◆ Volatile

Latest (2021)
0.0%
Change on year
down 100.0%
World rank
37th
of 114 countries
All-time high
60.0%
in 1974
All-time low
0.0%
in 2021
Years of data
43
1974–2021

Cholera case-fatality rate in Tanzania, 1974–2021

02040601974199720211974: 60 %1977: 8.8 %1978: 11.1 %1979: 11.9 %1980: 11.3 %1981: 7.8 %1982: 8 %1983: 7 %1984: 13 %1985: 12.6 %1986: 17.5 %1987: 12.3 %1988: 11 %1989: 10.8 %1990: 3.6 %1991: 10.1 %1992: 11.7 %1993: 9.3 %1994: 6.9 %1995: 3.2 %1996: 2.5 %1997: 5.5 %1998: 4.2 %1999: 4.8 %2000: 3.4 %2001: 4 %2002: 2.5 %2003: 4.5 %2004: 2.6 %2005: 3.2 %2006: 1.8 %2007: 4 %2008: 3 %2009: 1.5 %2010: 1.3 %2011: 1.2 %2012: 1.4 %2013: 6.3 %2015: 1.2 %2016: 1.5 %2017: 2 %2018: 1.8 %2021: 0 %

Source: World Health Organization - Global Health Observatory (2026); World Health Organization (2023) – with minor processing by Our World in Data. Measured in %.

Analysis

In 2021, cholera case-fatality rate in Tanzania stood at 0.0%. That is the lowest value across all 43 years on record.

Compared with earlier readings it is down 100.0% on the previous year and down 100.0% over ten years.

Over the whole period, cholera case-fatality rate in Tanzania peaked at 60.0% in 1974 and was at its lowest, 0.0%, in 2021.

That places Tanzania 37th out of 114 countries with data for 2021, putting it in the middle of the range.

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

Averages by decade

DecadeAverage LowestHighest Years
1970s 22.9% 8.8% 60.0% 4
1980s 11.1% 7.0% 17.5% 10
1990s 6.2% 2.5% 11.7% 10
2000s 3.0% 1.5% 4.5% 10
2010s 2.1% 1.2% 6.3% 8
2020s 0.0% 0.0% 0.0% 1

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More health data for Tanzania

All data for Tanzania →

Frequently asked questions

What is cholera case-fatality rate in Tanzania?
Cholera case-fatality rate in Tanzania was 0.0% in 2021, according to World Health Organization - Global Health Observatory (2026); World Health Organization (2023) – with minor processing by Our World in Data.
What is the highest cholera case-fatality rate recorded in Tanzania?
The highest recorded value was 60.0% in 1974.
What is the lowest cholera case-fatality rate recorded in Tanzania?
The lowest recorded value was 0.0% in 2021.
How does Tanzania rank for cholera case-fatality rate?
Tanzania ranks 37th out of 114 countries with data for 2021.
Is cholera case-fatality rate rising or falling in Tanzania?
Over the last ten years it is down 100.0%. The long-run trend across the full record is volatile.
Where does this Tanzania data come from?
The figures come from World Health Organization - Global Health Observatory (2026); World Health Organization (2023) – with minor processing by Our World in Data, published as part of Cholera case-fatality rate. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 43 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator
Cholera case-fatality rate
Unit
%
Source
World Health Organization - Global Health Observatory (2026); World Health Organization (2023) – with minor processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
114 places, 2,413 data points, 1949–2021
Last refreshed

WHO calculates case fatality rates based on the numbers of cases and deaths as reported by national authorities. The case fatality rate is the number of reported deaths, divided by the number of reported cases, shown as a percentage.