Iran vs Liberia: Reported versus estimated cases of polio

Iran
0 cases
in 2023
Liberia
0 cases
in 2023
Iran rank
26th
Liberia rank
26th

Reported versus estimated cases of polio over time

  • Iran
  • Liberia
050100150200198020012023

How they compare

Iran currently reports 0 cases against 0 cases in Liberia, a difference of 0 cases.

The two have swapped places 4 times across 42 shared years of data; in 1980 it was Liberia ahead.

Iran ranks 26th and Liberia ranks 26th of 199 countries.

Across the 5 decades both report, Iran averaged higher in 2 and Liberia in 3.

Head to head by decade

Decade Iran Liberia Difference Ahead
1980s 87.1 cases 14 cases 73.1 cases Iran
1990s 47.12 cases 6.62 cases 40.5 cases Iran
2000s 0.3 cases 1.1 cases 0.8 cases Liberia
2010s 0 cases 0.2 cases 0.2 cases Liberia
2020s 0 cases 0.75 cases 0.75 cases Liberia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher reported versus estimated cases of polio, Iran or Liberia?
Iran, at 0 cases against 0 cases in Liberia as of 2023.
What is the difference in reported versus estimated cases of polio between Iran and Liberia?
0 cases, with Iran ahead.
How many years of comparable data are there for Iran and Liberia?
42 years are reported by both, from 1980 to 2023.
How do Iran and Liberia rank globally for reported versus estimated cases of polio?
Iran ranks 26th and Liberia 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

Share, cite or embed this page

Cite this page

Iran vs Liberia: Reported versus estimated cases of polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 02 September 2026, from https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/iran-islamic-rep/liberia/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/iran-islamic-rep/liberia/">Iran vs Liberia: Reported versus estimated cases of polio</a> β€” 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.