Child immunization measures the percentage of children ages 12-23 months who received vaccinations before 12 months or at any time before the survey. A child is considered adequately immunized against diphtheria, pertussis (or whooping cough), and tetanus (DPT) after receiving three doses of vaccine.
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iceland | 99.0 | 98.0 | 95.0 | 96.0 | 95.0 | 89.0 | 91.0 | 90.0 | 92.0 | 91.0 | 89.0 | 91.0 | 92.0 | 93.0 | 92.0 | 92.0 | 92.0 |
| Norway | 86.0 | 90.0 | 91.0 | 93.0 | 94.0 | 95.0 | 94.0 | 93.0 | 95.0 | 96.0 | 96.0 | 96.0 | 97.0 | 97.0 | 97.0 | 97.0 | 96.0 |
| Switzerland | 90.0 | 93.0 | 94.0 | 95.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 96.0 | 95.0 |