[That is] something that we're evaluating very carefully to determine whether or not there's anything about this particular flu strain that's preferentially affecting children or causing more severe disease in children, ... We don't know the answer to the question yet. It is common for children to develop severe influenza and for deaths to occur in every flu season, unfortunately, so it will take us some time to figure that out.
— Julie Gerberding
CarefullyDetermineFlu