Chad vs Sudan: Number of one-year-olds who are not vaccinated against diphtheria

Chad
0.0125 one-year-olds per person
in 2023
Sudan
0.0152 one-year-olds per person
in 2023
Chad rank
7th
Sudan rank
4th

Number of one-year-olds who are not vaccinated against diphtheria over time

  • Chad
  • Sudan
00.010.020.030.04198020012023

How they compare

Sudan currently reports 0.0152 one-year-olds per person against 0.0125 one-year-olds per person in Chad, a difference of 0.0027 one-year-olds per person.

That makes Sudan's figure about 1.2 times Chad's.

The two have swapped places 2 times across 41 shared years of data; in 1983 it was Sudan ahead.

Chad ranks 7th and Sudan ranks 4th of 192 countries.

Chad has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade Chad Sudan Difference Ahead
1980s 0.0362 one-year-olds per person 0.0297 one-year-olds per person 0.0065 one-year-olds per person Chad
1990s 0.0335 one-year-olds per person 0.0176 one-year-olds per person 0.0159 one-year-olds per person Chad
2000s 0.0309 one-year-olds per person 0.0094 one-year-olds per person 0.0214 one-year-olds per person Chad
2010s 0.0241 one-year-olds per person 0.0024 one-year-olds per person 0.0217 one-year-olds per person Chad
2020s 0.0145 one-year-olds per person 0.0072 one-year-olds per person 0.0073 one-year-olds per person Chad

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who are not vaccinated against diphtheria, Chad or Sudan?
Sudan, at 0.0152 one-year-olds per person against 0.0125 one-year-olds per person in Chad as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Chad and Sudan?
0.0027 one-year-olds per person, with Sudan ahead.
How many years of comparable data are there for Chad and Sudan?
41 years are reported by both, from 1983 to 2023.
How do Chad and Sudan rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Chad ranks 7th and Sudan ranks 4th of 192 countries.
Where does this data come from?
Statizoid (derived), published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Sudan: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 17 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus/chad/sudan/

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<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus/chad/sudan/">Chad vs Sudan: Number of one-year-olds who are not vaccinated against diphtheria</a> — Statizoid

About this data

Indicator
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per capita
Unit
one-year-olds per person
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 7,818 data points, 1980–2023
Last refreshed

Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.