Congo vs Seychelles: Number of one-year-olds who are not vaccinated against diphtheria

Congo
0.1158 one-year-olds per square kilometre
in 2023
Seychelles
0.1177 one-year-olds per square kilometre
in 2023
Congo rank
99th
Seychelles rank
98th

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

  • Congo
  • Seychelles
0123198020012023

How they compare

Seychelles currently reports 0.1177 one-year-olds per square kilometre against 0.1158 one-year-olds per square kilometre in Congo, a difference of 0.0019 one-year-olds per square kilometre.

The two have swapped places 6 times across 43 shared years of data; in 1981 it was Seychelles ahead.

Congo ranks 99th and Seychelles ranks 98th of 192 countries.

Across the 5 decades both report, Congo averaged higher in 3 and Seychelles in 2.

Head to head by decade

Decade Congo Seychelles Difference Ahead
1980s 0.0845 one-year-olds per square kilometre 0.6949 one-year-olds per square kilometre 0.6103 one-year-olds per square kilometre Seychelles
1990s 0.1396 one-year-olds per square kilometre 0.0799 one-year-olds per square kilometre 0.0596 one-year-olds per square kilometre Congo
2000s 0.1385 one-year-olds per square kilometre 0.044 one-year-olds per square kilometre 0.0945 one-year-olds per square kilometre Congo
2010s 0.1017 one-year-olds per square kilometre 0.0676 one-year-olds per square kilometre 0.0341 one-year-olds per square kilometre Congo
2020s 0.1213 one-year-olds per square kilometre 0.1433 one-year-olds per square kilometre 0.022 one-year-olds per square kilometre Seychelles

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, Congo or Seychelles?
Seychelles, at 0.1177 one-year-olds per square kilometre against 0.1158 one-year-olds per square kilometre in Congo as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Congo and Seychelles?
0.0019 one-year-olds per square kilometre, with Seychelles ahead.
How many years of comparable data are there for Congo and Seychelles?
43 years are reported by both, from 1981 to 2023.
How do Congo and Seychelles rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Congo ranks 99th and Seychelles ranks 98th 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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Congo vs Seychelles: 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/congo-rep/seychelles/

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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/congo-rep/seychelles/">Congo vs Seychelles: 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.