Pertussis - number of reported cases in Chad

Chad: Pertussis - number of reported cases was 5,898 in 1998. β—† Volatile

Latest (1998)
5,898
Change on year
up 7.3%
World rank
9th
of 205 countries
All-time high
11,999
in 1976
All-time low
273
in 1982
Years of data
14
1974–1998

Pertussis - number of reported cases in Chad, 1974–1998

02.5k5.0k7.5k10.0k12.5k1974198619981974: 5.5k1975: 8.3k1976: 12.0k1977: 5.9k1978: 2.4k1982: 2731983: 2.3k1984: 2.5k1985: 1.5k1986: 2.3k1995: 5.7k1996: 5.0k1997: 5.5k1998: 5.9k

Source: World Health Organization, Global Health Observatory.

Analysis

In 1998, pertussis - number of reported cases in Chad stood at 5,898.

That represents a change of up 7.3% on the previous year and up 156.1% over ten years.

Over the whole period, pertussis - number of reported cases in Chad peaked at 11,999 in 1976 and was at its lowest, 273, in 1982.

Chad ranks 9th of 205 countries on this measure, in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

DecadeAverage LowestHighest Years
1970s 6,822 2,366 11,999 5
1980s 1,778 273 2,532 5
1990s 5,536 5,004 5,898 4

Countries ranked near Chad

  1. 6 Nigeria 7,897 compare
  2. 7 Russia 7,288 compare
  3. 8 Germany 7,122 compare
  4. 10 South Africa 5,666
  5. 11 Mexico 5,506 compare
  6. 12 Korea 5,500 compare

See the full ranking of 222 places β†’

More health data for Chad

All data for Chad β†’

Frequently asked questions

What is pertussis - number of reported cases in Chad?
Pertussis - number of reported cases in Chad was 5,898 in 1998, according to World Health Organization, Global Health Observatory.
What is the highest pertussis - number of reported cases recorded in Chad?
The highest recorded value was 11,999 in 1976.
What is the lowest pertussis - number of reported cases recorded in Chad?
The lowest recorded value was 273 in 1982.
How does Chad rank for pertussis - number of reported cases?
Chad ranks 9th out of 205 countries with data for 1998.
Is pertussis - number of reported cases rising or falling in Chad?
Over the last ten years it is up 156.1%. The long-run trend across the full record is volatile.
Where does this Chad data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Pertussis - number of reported cases. Statizoid updates them automatically from the source API.

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Pertussis - number of reported cases in Chad. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 17 August 2026, from https://health.statizoid.com/stat/pertussis-number-of-reported-cases/chad/

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About this data

Indicator
Pertussis - number of reported cases
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
222 places, 9,189 data points, 1974–2025
Last refreshed