만 2세 이전 아이들의 예방접종률은 86%로 높은 편이지만, 추가 접종을 권장하는 만 4∼6세 때는 40% 이하로 나타났다.
The vaccination rate of children before the age of 2 is high at 86%, but it was found to be less than 40% at the age of 4 to 6 years old, where additional vaccination is recommended.