Sierra Leone vs Sudan: Reported versus estimated cases of polio
Sierra Leone
0 cases
in 2023
Sudan
0 cases
in 2023
Sierra Leone rank
26th
Sudan rank
26th
Reported versus estimated cases of polio over time
- Sierra Leone
- Sudan
How they compare
Sierra Leone currently reports 0 cases against 0 cases in Sudan, a difference of 0 cases.
The two have swapped places 6 times across 43 shared years of data; in 1980 it was Sudan ahead.
Sierra Leone ranks 26th and Sudan ranks 26th of 199 countries.
Across the 5 decades both report, Sierra Leone averaged higher in 1 and Sudan in 4.
Head to head by decade
| Decade | Sierra Leone | Sudan | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 39.3 cases | 506.5 cases | 467.2 cases | Sudan |
| 1990s | 14.33 cases | 53.67 cases | 39.33 cases | Sudan |
| 2000s | 4.5 cases | 30.6 cases | 26.1 cases | Sudan |
| 2010s | 0.1 cases | 0 cases | 0.1 cases | Sierra Leone |
| 2020s | 3.75 cases | 15 cases | 11.25 cases | Sudan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher reported versus estimated cases of polio, Sierra Leone or Sudan?
- Sierra Leone, at 0 cases against 0 cases in Sudan as of 2023.
- What is the difference in reported versus estimated cases of polio between Sierra Leone and Sudan?
- 0 cases, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Sudan?
- 43 years are reported by both, from 1980 to 2023.
- How do Sierra Leone and Sudan rank globally for reported versus estimated cases of polio?
- Sierra Leone ranks 26th and Sudan ranks 26th of 199 countries.
- Where does this data come from?
- World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported versus estimated cases of polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases.