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

Chad
0.1925 one-year-olds per square kilometre
in 2023
Vanuatu
0.2029 one-year-olds per square kilometre
in 2023
Chad rank
76th
Vanuatu rank
75th

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

  • Chad
  • Vanuatu
0.050.10.150.20.250.3198220022023

How they compare

Vanuatu currently reports 0.2029 one-year-olds per square kilometre against 0.1925 one-year-olds per square kilometre in Chad, a difference of 0.0104 one-year-olds per square kilometre.

That makes Vanuatu's figure about 1.1 times Chad's.

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

Chad ranks 76th and Vanuatu ranks 75th of 192 countries.

Across the 5 decades both report, Chad averaged higher in 3 and Vanuatu in 2.

Head to head by decade

Decade Chad Vanuatu Difference Ahead
1980s 0.1527 one-year-olds per square kilometre 0.2357 one-year-olds per square kilometre 0.083 one-year-olds per square kilometre Vanuatu
1990s 0.1854 one-year-olds per square kilometre 0.1144 one-year-olds per square kilometre 0.071 one-year-olds per square kilometre Chad
2000s 0.2486 one-year-olds per square kilometre 0.1504 one-year-olds per square kilometre 0.0982 one-year-olds per square kilometre Chad
2010s 0.2739 one-year-olds per square kilometre 0.113 one-year-olds per square kilometre 0.161 one-year-olds per square kilometre Chad
2020s 0.2081 one-year-olds per square kilometre 0.2165 one-year-olds per square kilometre 0.0084 one-year-olds per square kilometre Vanuatu

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 Vanuatu?
Vanuatu, at 0.2029 one-year-olds per square kilometre against 0.1925 one-year-olds per square kilometre in Chad as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Chad and Vanuatu?
0.0104 one-year-olds per square kilometre, with Vanuatu ahead.
How many years of comparable data are there for Chad and Vanuatu?
41 years are reported by both, from 1983 to 2023.
How do Chad and Vanuatu rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Chad ranks 76th and Vanuatu ranks 75th 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 square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Vanuatu: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/chad/vanuatu/

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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-3/chad/vanuatu/">Chad vs Vanuatu: 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 square kilometre
Unit
one-year-olds per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 7,710 data points, 1980–2023
Last refreshed

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