Liberia vs Western Pacific (WHO region): Pertussis - number of reported cases, annual growth rate

Liberia
189.31 % change on previous year
in 2002
Western Pacific (WHO region)
-73.21 % change on previous year
in 2025
Liberia rank
9th
Western Pacific (WHO region) rank
9th

Pertussis - number of reported cases, annual growth rate over time

  • Liberia
  • Western Pacific (WHO region)
0200400600197520002025

How they compare

Liberia currently reports 189.31 % change on previous year against -73.21 % change on previous year in Western Pacific (WHO region), a difference of 262.52 % change on previous year.

That makes Liberia's figure about 2.6 times Western Pacific (WHO region)'s.

The two have swapped places 4 times across 12 shared years of data; in 1981 it was Liberia ahead.

Liberia ranks 9th and Western Pacific (WHO region) ranks 9th of 191 countries.

Across the 3 decades both report, Liberia averaged higher in 2 and Western Pacific (WHO region) in 1.

Head to head by decade

Decade Liberia Western Pacific (WHO region) Difference Ahead
1980s 50.59 % change on previous year -22.2 % change on previous year 72.79 % change on previous year Liberia
1990s -64.63 % change on previous year 14.86 % change on previous year 79.49 % change on previous year Western Pacific (WHO region)
2000s 35.75 % change on previous year 22.93 % change on previous year 12.82 % change on previous year Liberia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pertussis - number of reported cases, annual growth rate, Liberia or Western Pacific (WHO region)?
Liberia, at 189.31 % change on previous year against -73.21 % change on previous year in Western Pacific (WHO region) as of 2002.
What is the difference in pertussis - number of reported cases, annual growth rate between Liberia and Western Pacific (WHO region)?
262.52 % change on previous year, with Liberia ahead.
How many years of comparable data are there for Liberia and Western Pacific (WHO region)?
12 years are reported by both, from 1981 to 2002.
How do Liberia and Western Pacific (WHO region) rank globally for pertussis - number of reported cases, annual growth rate?
Liberia ranks 9th and Western Pacific (WHO region) ranks 9th of 191 countries.
Where does this data come from?
Statizoid (derived), published as Pertussis - number of reported cases, annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Liberia vs Western Pacific (WHO region): Pertussis - number of reported cases, annual growth rate. Statizoid, drawing on Statizoid (derived). Retrieved 14 September 2026, from https://health.statizoid.com/compare/pertussis-number-of-reported-cases-annual-growth-rate/liberia/western-pacific-who-region/

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About this data

Indicator
Pertussis - number of reported cases, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
204 places, 6,283 data points, 1975–2025
Last refreshed

The year-on-year percentage change in Pertussis - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.