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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brunei Darussalam | 93.0 | 99.0 | 94.0 | 95.0 | 97.0 | 95.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 |
| Cambodia | 38.0 | 59.0 | 82.0 | 90.0 | 91.0 | 90.0 | 86.0 | 90.0 | 91.0 | 91.0 | 90.0 | 89.0 | 88.0 | 87.0 | 87.0 | 85.0 | 85.0 |
| Indonesia | 60.0 | 75.0 | 72.0 | 81.0 | 81.0 | 87.0 | 92.0 | 88.0 | 84.0 | 84.0 | 85.0 | 85.0 | 85.0 | 77.0 | 67.0 | 91.0 | 83.0 |
| Lao People’s Democratic Republic | 18.0 | 51.0 | 49.0 | 74.0 | 76.0 | 77.0 | 83.0 | 83.0 | 83.0 | 83.0 | 84.0 | 85.0 | 80.0 | 79.0 | 75.0 | 80.0 | 84.0 |
| Malaysia | 90.0 | 98.0 | 96.0 | 96.0 | 96.0 | 97.0 | 97.0 | 97.0 | 99.0 | 98.0 | 99.0 | 99.0 | 98.0 | 98.0 | 95.0 | 97.0 | 97.0 |
| Myanmar | 88.0 | 82.0 | 73.0 | 90.0 | 84.0 | 84.0 | 75.0 | 88.0 | 89.0 | 90.0 | 89.0 | 91.0 | 90.0 | 84.0 | 37.0 | 71.0 | 76.0 |
| Philippines | 88.0 | 78.0 | 89.0 | 88.0 | 89.0 | 89.0 | 84.0 | 79.0 | 74.0 | 84.0 | 84.0 | 84.0 | 84.0 | 83.0 | 69.0 | 84.0 | 89.0 |
| Singapore | 85.0 | 98.0 | 96.0 | 96.0 | 96.0 | 97.0 | 97.0 | 96.0 | 96.0 | 97.0 | 96.0 | 97.0 | 97.0 | 98.0 | 98.0 | 97.0 | 98.0 |
| Thailand | 92.0 | 97.0 | 98.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 99.0 | 97.0 | 97.0 | 97.0 | 92.0 | 92.0 | 92.0 |
| Viet Nam | 88.0 | 96.0 | 95.0 | 93.0 | 95.0 | 97.0 | 59.0 | 95.0 | 97.0 | 96.0 | 94.0 | 75.0 | 89.0 | 94.0 | 83.0 | 91.0 | 65.0 |