Cook Islands vs Guyana: Share of one-year-olds vaccinated against measles
Cook Islands
99.0%
in 2024
Guyana
99.0%
in 2024
Cook Islands rank
1st
Guyana rank
1st
Share of one-year-olds vaccinated against measles over time
- Cook Islands
- Guyana
How they compare
Cook Islands currently reports 99.0% against 99.0% in Guyana, a difference of 0.0%.
The two have swapped places 13 times across 42 shared years of data; in 1983 it was Cook Islands ahead.
Cook Islands ranks 1st and Guyana ranks 1st of 194 countries.
Across the 5 decades both report, Cook Islands averaged higher in 3 and Guyana in 2.
Head to head by decade
| Decade | Cook Islands | Guyana | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 79.1% | 52.1% | 27.0% | Cook Islands |
| 1990s | 85.6% | 82.7% | 2.9% | Cook Islands |
| 2000s | 92.1% | 91.8% | 0.3% | Cook Islands |
| 2010s | 96.5% | 98.3% | 1.8% | Guyana |
| 2020s | 81.0% | 97.4% | 16.4% | Guyana |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of one-year-olds vaccinated against measles, Cook Islands or Guyana?
- Cook Islands, at 99.0% against 99.0% in Guyana as of 2024.
- What is the difference in share of one-year-olds vaccinated against measles between Cook Islands and Guyana?
- 0.0%, with Cook Islands ahead.
- How many years of comparable data are there for Cook Islands and Guyana?
- 42 years are reported by both, from 1983 to 2024.
- How do Cook Islands and Guyana rank globally for share of one-year-olds vaccinated against measles?
- Cook Islands ranks 1st and Guyana ranks 1st of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Share of one-year-olds vaccinated against measles. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Share of one-year-olds who have had the first dose of the measles vaccine in a given year.