Sierra Leone vs Sri Lanka: Reported versus estimated cases of polio
Sierra Leone
0 cases
in 2023
Sri Lanka
0 cases
in 2023
Sierra Leone rank
26th
Sri Lanka rank
26th
Reported versus estimated cases of polio over time
- Sierra Leone
- Sri Lanka
How they compare
Sierra Leone currently reports 0 cases against 0 cases in Sri Lanka, a difference of 0 cases.
The two have swapped places 12 times across 43 shared years of data; in 1980 it was Sri Lanka ahead.
Sierra Leone ranks 26th and Sri Lanka ranks 26th of 199 countries.
Across the 5 decades both report, Sierra Leone averaged higher in 4 and Sri Lanka in 1.
Head to head by decade
| Decade | Sierra Leone | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 39.3 cases | 81.1 cases | 41.8 cases | Sri Lanka |
| 1990s | 14.33 cases | 4.11 cases | 10.22 cases | Sierra Leone |
| 2000s | 4.5 cases | 0 cases | 4.5 cases | Sierra Leone |
| 2010s | 0.1 cases | 0 cases | 0.1 cases | Sierra Leone |
| 2020s | 3.75 cases | 0 cases | 3.75 cases | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher reported versus estimated cases of polio, Sierra Leone or Sri Lanka?
- Sierra Leone, at 0 cases against 0 cases in Sri Lanka as of 2023.
- What is the difference in reported versus estimated cases of polio between Sierra Leone and Sri Lanka?
- 0 cases, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Sri Lanka?
- 43 years are reported by both, from 1980 to 2023.
- How do Sierra Leone and Sri Lanka rank globally for reported versus estimated cases of polio?
- Sierra Leone ranks 26th and Sri Lanka 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.