Minnesota is reporting the highest number of whooping cough cases in more than a decade, the state Department of Health says. As of last Wednesday, 2,324 cases of whooping cough, also called pertussis,

The agency says it hasn't seen a rise in cases of this magnitude since 2012, but says it's not unexpected since the illness cycles every three to five years. During that year, 4,144 cases of whooping cough were reported.