What is the difference in pertussis - number of reported cases, per capita between Sierra Leone and Somalia?

0 units per person, with Sierra Leone ahead.

How many years of comparable data are there for Sierra Leone and Somalia?

8 years are reported by both, from 1983 to 2011.

Where does this data come from?

Statizoid (derived), published as Pertussis - number of reported cases, per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sierra Leone vs Somalia: Pertussis - number of reported cases, per capita

Sierra Leone

0 units per person

in 2025

Somalia

0 units per person

in 2020

Sierra Leone rank

136th

Somalia rank

136th

Pertussis - number of reported cases, per capita over time

Sierra Leone
Somalia

How they compare

Sierra Leone currently reports 0 units per person against 0 units per person in Somalia, a difference of 0 units per person.

The two have swapped places 1 time across 8 shared years of data; in 1983 it was Sierra Leone ahead.

Sierra Leone ranks 136th and Somalia ranks 136th of 204 countries.

Across the 3 decades both report, Sierra Leone averaged higher in 1 and Somalia in 2.

Head to head by decade

Decade	Sierra Leone	Somalia	Difference	Ahead
1980s	0.0002 units per person	0 units per person	0.0002 units per person	Sierra Leone
2000s	0 units per person	0.0001 units per person	0.0001 units per person	Somalia
2010s	0 units per person	0.0002 units per person	0.0002 units per person	Somalia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pertussis - number of reported cases, per capita, Sierra Leone or Somalia?: Sierra Leone, at 0 units per person against 0 units per person in Somalia as of 2025.
What is the difference in pertussis - number of reported cases, per capita between Sierra Leone and Somalia?: 0 units per person, with Sierra Leone ahead.
How many years of comparable data are there for Sierra Leone and Somalia?: 8 years are reported by both, from 1983 to 2011.
How do Sierra Leone and Somalia rank globally for pertussis - number of reported cases, per capita?: Sierra Leone ranks 136th and Somalia ranks 136th of 204 countries.
Where does this data come from?: Statizoid (derived), published as Pertussis - number of reported cases, per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sierra Leone vs Somalia: Pertussis - number of reported cases, per capita. Statizoid, drawing on Statizoid (derived). Retrieved 07 September 2026, from https://health.statizoid.com/compare/pertussis-number-of-reported-cases-per-capita/sierra-leone/somalia-fed-rep/

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<a href="https://health.statizoid.com/compare/pertussis-number-of-reported-cases-per-capita/sierra-leone/somalia-fed-rep/">Sierra Leone vs Somalia: Pertussis - number of reported cases, per capita</a> — Statizoid

About this data

Indicator: Pertussis - number of reported cases, per capita
Unit: units per person
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 205 places, 8,445 data points, 1974–2025
Last refreshed: 01 September 2026

Pertussis - number of reported cases divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.