Kazakhstan is being the top country by immunization, measles in the world. As of 2015, immunization, measles in Kazakhstan was 99 % of children ages 12-23 months. The top 5 countries also includes Kyrgyzstan, Luxembourg, Maldives, and Monaco.
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 measles after receiving one dose of vaccine.