Brazil vs Cook Islands: Number of one-year-olds who are not vaccinated against diphtheria

Brazil
-57.12 % change on previous year
in 2023
Cook Islands
-53.92 % change on previous year
in 2023
Brazil rank
188th
Cook Islands rank
187th

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

  • Brazil
  • Cook Islands
0200400600198120022023

How they compare

Cook Islands currently reports -53.92 % change on previous year against -57.12 % change on previous year in Brazil, a difference of 3.2 % change on previous year.

The two have swapped places 26 times across 41 shared years of data; in 1981 it was Cook Islands ahead.

Brazil ranks 188th and Cook Islands ranks 187th of 194 countries.

Across the 5 decades both report, Brazil averaged higher in 2 and Cook Islands in 3.

Head to head by decade

Decade Brazil Cook Islands Difference Ahead
1980s -2.86 % change on previous year -6.2 % change on previous year 3.34 % change on previous year Brazil
1990s -15.4 % change on previous year 10.01 % change on previous year 25.41 % change on previous year Cook Islands
2000s -14.31 % change on previous year -11.66 % change on previous year 2.65 % change on previous year Cook Islands
2010s 78.14 % change on previous year 46.56 % change on previous year 31.58 % change on previous year Brazil
2020s -19.15 % change on previous year 118.57 % change on previous year 137.72 % change on previous year Cook Islands

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, Brazil or Cook Islands?
Cook Islands, at -53.92 % change on previous year against -57.12 % change on previous year in Brazil as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Brazil and Cook Islands?
3.2 % change on previous year, with Cook Islands ahead.
How many years of comparable data are there for Brazil and Cook Islands?
41 years are reported by both, from 1981 to 2023.
How do Brazil and Cook Islands rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Brazil ranks 188th and Cook Islands ranks 187th 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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Brazil vs Cook Islands: 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/brazil/cook-islands/

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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/brazil/cook-islands/">Brazil vs Cook Islands: 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.