India vs Sierra Leone: Reported versus estimated cases of polio

India
0 cases
in 2023
Sierra Leone
0 cases
in 2023
India rank
26th
Sierra Leone rank
26th

Reported versus estimated cases of polio over time

  • India
  • Sierra Leone
010.0k20.0k30.0k40.0k198020012023

How they compare

India currently reports 0 cases against 0 cases in Sierra Leone, a difference of 0 cases.

The two have swapped places 1 time across 43 shared years of data; in 1980 it was India ahead.

India ranks 26th and Sierra Leone ranks 26th of 199 countries.

Across the 5 decades both report, India averaged higher in 4 and Sierra Leone in 1.

Head to head by decade

Decade India Sierra Leone Difference Ahead
1980s 23,983 cases 39.3 cases 23,944 cases India
1990s 5,267 cases 14.33 cases 5,253 cases India
2000s 542.3 cases 4.5 cases 537.8 cases India
2010s 4.5 cases 0.1 cases 4.4 cases India
2020s 0 cases 3.75 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, India or Sierra Leone?
India, at 0 cases against 0 cases in Sierra Leone as of 2023.
What is the difference in reported versus estimated cases of polio between India and Sierra Leone?
0 cases, with India ahead.
How many years of comparable data are there for India and Sierra Leone?
43 years are reported by both, from 1980 to 2023.
How do India and Sierra Leone rank globally for reported versus estimated cases of polio?
India ranks 26th and Sierra Leone 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.

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India vs Sierra Leone: Reported versus estimated cases of polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 28 August 2026, from https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/india/sierra-leone/

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<a href="https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/india/sierra-leone/">India vs Sierra Leone: Reported versus estimated cases of polio</a> — Statizoid

About this data

Indicator
Reported versus estimated cases of polio
Unit
cases
Source
World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
199 places, 7,608 data points, 1980–2023
Last refreshed

Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases.