The report found that one in 12 kids in the United States up to age 17 have asthma.
That is about six million children and teens.
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Of those, half had one or more attacks in 2016.
The CDC says asthma can be considered well-controlled if a person exhibits symptoms no more than two days per week, if sleep isn’t interrupted more than one or two nights each months and if normal activities are not difficult to complete.