Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of

Tanzania, United Republic of: Reported vs estimated total number of paralytic polio cases globally was 2 in 2023. ◆ Volatile

Latest (2023)
2
World rank
19th
of 196 countries
All-time high
578
in 1987
All-time low
0
in 1999
Years of data
43
1980–2023

Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of, 1980–2023

02004006001980200120231980: 911981: 691982: 261983: 1011984: 1081985: 3401986: 2301987: 5781988: 41989: 31990: 31991: 41992: 91993: 11994: 91996: 91997: 101998: 661999: 02000: 02001: 02002: 02003: 02004: 02005: 02006: 02007: 02008: 02009: 02010: 02011: 02012: 02013: 02014: 02015: 02016: 02017: 02018: 02019: 02020: 02021: 02022: 02023: 2

Source: Our World in Data.

Analysis

Tanzania, United Republic of recorded 2 for reported vs estimated total number of paralytic polio cases globally in 2023.

Over the whole period, reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of peaked at 578 in 1987 and was at its lowest, 0, in 1999.

That places Tanzania, United Republic of 19th out of 196 countries with data for 2023, putting it in the top 10%.

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

Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of, year by year

Annual values for Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of, 1980 to 2023.
Year Value Change
1980 91
1981 69 -24.2%
1982 26 -62.3%
1983 101 +288.5%
1984 108 +6.9%
1985 340 +214.8%
1986 230 -32.4%
1987 578 +151.3%
1988 4 -99.3%
1989 3 -25.0%
1990 3 +0.0%
1991 4 +33.3%
1992 9 +125.0%
1993 1 -88.9%
1994 9 +800.0%
1996 9 +0.0%
1997 10 +11.1%
1998 66 +560.0%
1999 0 -100.0%
2000 0
2001 0
2002 0
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 0
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 2

Averages by decade

DecadeAverage LowestHighest Years
1980s 155 3 578 10
1990s 12.33 0 66 9
2000s 0 0 0 10
2010s 0 0 0 10
2020s 0.5 0 2 4

Countries ranked near Tanzania, United Republic of

  1. 16 Benin 3 compare
  2. 16 Burkina Faso 3 compare
  3. 16 South Sudan 3 compare
  4. 19 Niger 2 compare
  5. 21 Burundi 1 compare
  6. 21 Israel 1 compare
  7. 21 Mauritania 1 compare
  8. 21 Zambia 1 compare
  9. 21 Zimbabwe 1 compare

See the full ranking of 199 places →

More reference data data for Tanzania, United Republic of

All data for Tanzania, United Republic of →

Frequently asked questions

What is reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of?
Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of was 2 in 2023, according to Our World in Data.
What is the highest reported vs estimated total number of paralytic polio cases globally recorded in Tanzania, United Republic of?
The highest recorded value was 578 in 1987.
What is the lowest reported vs estimated total number of paralytic polio cases globally recorded in Tanzania, United Republic of?
The lowest recorded value was 0 in 1999.
How does Tanzania, United Republic of rank for reported vs estimated total number of paralytic polio cases globally?
Tanzania, United Republic of ranks 19th out of 196 countries with data for 2023.
Where does this Tanzania, United Republic of data come from?
The figures come from Our World in Data, published as part of Reported vs estimated total number of paralytic polio cases globally. Statizoid updates them automatically from the source API.

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Reported vs estimated total number of paralytic polio cases globally in Tanzania, United Republic of. Statizoid, drawing on Our World in Data. Retrieved 23 August 2026, from https://reference.statizoid.com/stat/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/tanzania/

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About this data

Indicator
Reported vs estimated total number of paralytic polio cases globally
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
199 places, 7,608 data points, 1980–2023
Last refreshed