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

Grenada
0
in 2025
Sierra Leone
0
in 2025
Grenada rank
137th
Sierra Leone rank
137th

Pertussis - number of reported cases, gaps filled over time

  • Grenada
  • Sierra Leone
05001.0k1.5k2.0k197419992025

How they compare

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

The two have swapped places 2 times across 30 shared years of data; in 1979 it was Sierra Leone ahead.

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

Across the 6 decades both report, Grenada averaged higher in 1 and Sierra Leone in 4.

Head to head by decade

Decade Grenada Sierra Leone Difference Ahead
1970s 6 1,425 1,419 Sierra Leone
1980s 1.33 1,160 1,158 Sierra Leone
1990s 1.33 0 1.33 Grenada
2000s 0.1 1.73 1.62 Sierra Leone
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, Grenada or Sierra Leone?
Grenada, at 0 against 0 in Sierra Leone as of 2025.
What is the difference in pertussis - number of reported cases, gaps filled between Grenada and Sierra Leone?
0, with Grenada ahead.
How many years of comparable data are there for Grenada and Sierra Leone?
30 years are reported by both, from 1979 to 2025.
How do Grenada and Sierra Leone rank globally for pertussis - number of reported cases, gaps filled?
Grenada 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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Grenada vs Sierra Leone: Pertussis - number of reported cases, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 01 September 2026, from https://health.statizoid.com/compare/pertussis-number-of-reported-cases-gaps-filled/grenada/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.