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

Seychelles
0.6696 % change on previous year
in 2023
Tonga
0.5872 % change on previous year
in 2023
Seychelles rank
78th
Tonga rank
80th

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

  • Seychelles
  • Tonga
0200400600198120022023

How they compare

Seychelles currently reports 0.6696 % change on previous year against 0.5872 % change on previous year in Tonga, a difference of 0.0824 % change on previous year.

That makes Seychelles's figure about 1.1 times Tonga's.

The two have swapped places 21 times across 42 shared years of data; in 1982 it was Tonga ahead.

Seychelles ranks 78th and Tonga ranks 80th of 194 countries.

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

Head to head by decade

Decade Seychelles Tonga Difference Ahead
1980s 5.09 % change on previous year 87.91 % change on previous year 82.82 % change on previous year Tonga
1990s 7.55 % change on previous year 70.03 % change on previous year 62.48 % change on previous year Tonga
2000s 12.38 % change on previous year -6.05 % change on previous year 18.43 % change on previous year Seychelles
2010s 21.28 % change on previous year 42.99 % change on previous year 21.7 % change on previous year Tonga
2020s 63.43 % change on previous year -0.3538 % change on previous year 63.79 % change on previous year 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, Seychelles or Tonga?
Seychelles, at 0.6696 % change on previous year against 0.5872 % change on previous year in Tonga as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Seychelles and Tonga?
0.0824 % change on previous year, with Seychelles ahead.
How many years of comparable data are there for Seychelles and Tonga?
42 years are reported by both, from 1982 to 2023.
How do Seychelles and Tonga rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Seychelles ranks 78th and Tonga ranks 80th of 194 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, annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Seychelles vs Tonga: 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-4/seychelles/tonga/

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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-4/seychelles/tonga/">Seychelles vs Tonga: 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, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
194 places, 7,686 data points, 1981–2023
Last refreshed

The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.