“…Questions for surveying the current state of measles vaccination were based on previous studies that surveyed the current state of measles vaccination and factors influencing vaccination [8,12,13,17,21]. The questions included four questions on demographic characteristics such as gender, age, grade, and religion [12,17], and five questions on measles vaccination, such as whether the participants have had measles vaccination [17], whether they have heard about measles vaccination [13,21], whether they have heard about MMR vaccination [21], and whether they have experienced measles-related education and would recommend vaccination to others [8].…”