QuickStats: Percentage of Children Aged 4-17 Years Who Had Ever Had Varicella (Chickenpox),* by Age Group - National Health Interview Survey, 2007-2016†.

During 2007-2016, the percentage of children aged 4-17 years who had ever had chickenpox decreased among both younger children (aged 4-11 years) and older children (aged 12-17 years). Among younger children, the percentage of children who had ever had chickenpox declined by 73.9%, from 16.1% in 2007 to 4.2% in 2016. Among older children the percentage who had ever had chickenpox declined by 76.9%, from 61.4% in 2007 to 14.2% in 2016. During 2007-2016, older children were more likely than younger children to have ever had chickenpox.