Chad vs Nigeria: Pertussis - number of reported cases, gaps filled

Chad
5,898
in 1998
Nigeria
7,897
in 2018
Chad rank
9th
Nigeria rank
6th

Pertussis - number of reported cases, gaps filled over time

  • Chad
  • Nigeria
020.0k40.0k60.0k80.0k100.0k197419962018

How they compare

Nigeria currently reports 7,897 against 5,898 in Chad, a difference of 1,999.

That makes Nigeria's figure about 1.3 times Chad's.

Across all 17 years both countries report, Nigeria has been ahead every year.

Chad ranks 9th and Nigeria ranks 6th of 210 countries.

Nigeria has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade Chad Nigeria Difference Ahead
1970s 5,992 41,683 35,691 Nigeria
1980s 1,573 64,425 62,852 Nigeria
1990s 5,536 24,564 19,028 Nigeria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pertussis - number of reported cases, gaps filled, Chad or Nigeria?
Nigeria, at 7,897 against 5,898 in Chad as of 2018.
What is the difference in pertussis - number of reported cases, gaps filled between Chad and Nigeria?
1,999, with Nigeria ahead.
How many years of comparable data are there for Chad and Nigeria?
17 years are reported by both, from 1974 to 1998.
How do Chad and Nigeria rank globally for pertussis - number of reported cases, gaps filled?
Chad ranks 9th and Nigeria ranks 6th 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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Chad vs Nigeria: 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/chad/nigeria/

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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.