Comoros vs Nigeria: Number of one-year-olds who are not vaccinated against diphtheria

Comoros
3.1 one-year-olds per square kilometre
in 2023
Nigeria
2.47 one-year-olds per square kilometre
in 2023
Comoros rank
3rd
Nigeria rank
5th

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

  • Comoros
  • Nigeria
0246198420032023

How they compare

Comoros currently reports 3.1 one-year-olds per square kilometre against 2.47 one-year-olds per square kilometre in Nigeria, a difference of 0.63 one-year-olds per square kilometre.

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

The two have swapped places 12 times across 40 shared years of data; in 1984 it was Comoros ahead.

Comoros ranks 3rd and Nigeria ranks 5th of 192 countries.

Across the 5 decades both report, Comoros averaged higher in 3 and Nigeria in 2.

Head to head by decade

Decade Comoros Nigeria Difference Ahead
1980s 3.53 one-year-olds per square kilometre 2.71 one-year-olds per square kilometre 0.819 one-year-olds per square kilometre Comoros
1990s 3.37 one-year-olds per square kilometre 2.93 one-year-olds per square kilometre 0.4365 one-year-olds per square kilometre Comoros
2000s 2.4 one-year-olds per square kilometre 3.6 one-year-olds per square kilometre 1.2 one-year-olds per square kilometre Nigeria
2010s 2.38 one-year-olds per square kilometre 3.58 one-year-olds per square kilometre 1.2 one-year-olds per square kilometre Nigeria
2020s 3.1 one-year-olds per square kilometre 2.78 one-year-olds per square kilometre 0.3199 one-year-olds per square kilometre Comoros

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, Comoros or Nigeria?
Comoros, at 3.1 one-year-olds per square kilometre against 2.47 one-year-olds per square kilometre in Nigeria as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Comoros and Nigeria?
0.63 one-year-olds per square kilometre, with Comoros ahead.
How many years of comparable data are there for Comoros and Nigeria?
40 years are reported by both, from 1984 to 2023.
How do Comoros and Nigeria rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Comoros ranks 3rd and Nigeria ranks 5th 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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Comoros vs Nigeria: 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/comoros/nigeria/

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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/comoros/nigeria/">Comoros vs Nigeria: 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.