Liberia vs Sierra Leone: Pertussis - number of reported cases, gaps filled

Liberia
0
in 2022
Sierra Leone
0
in 2025
Liberia rank
137th
Sierra Leone rank
137th

Pertussis - number of reported cases, gaps filled over time

  • Liberia
  • Sierra Leone
01.0k2.0k3.0k4.0k5.0k197419992025

How they compare

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

The two have swapped places 2 times across 27 shared years of data; in 1979 it was Sierra Leone ahead.

Liberia ranks 137th and Sierra Leone ranks 137th of 210 countries.

Across the 6 decades both report, Liberia averaged higher in 2 and Sierra Leone in 3.

Head to head by decade

Decade Liberia Sierra Leone Difference Ahead
1970s 100 1,425 1,325 Sierra Leone
1980s 570.56 1,160 589 Sierra Leone
1990s 705.67 0 705.67 Liberia
2000s 98.05 1.73 96.33 Liberia
2010s 0 20.12 20.12 Sierra Leone
2020s 0 0 0

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pertussis - number of reported cases, gaps filled, Liberia or Sierra Leone?
Liberia, at 0 against 0 in Sierra Leone as of 2022.
What is the difference in pertussis - number of reported cases, gaps filled between Liberia and Sierra Leone?
0, with Liberia ahead.
How many years of comparable data are there for Liberia and Sierra Leone?
27 years are reported by both, from 1979 to 2022.
How do Liberia and Sierra Leone rank globally for pertussis - number of reported cases, gaps filled?
Liberia ranks 137th and Sierra Leone ranks 137th of 210 countries.
Where does this data come from?
Statizoid (derived), published as Pertussis - number of reported cases, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Liberia vs Sierra Leone: Pertussis - number of reported cases, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 06 September 2026, from https://health.statizoid.com/compare/pertussis-number-of-reported-cases-gaps-filled/liberia/sierra-leone/

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About this data

Indicator
Pertussis - number of reported cases, gaps filled
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
223 places, 9,846 data points, 1974–2025
Last refreshed

Pertussis - number of reported cases with 623 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.