State reporting ‘significant increase’ in whooping cough cases WISN MilwaukeeNebraskans encouraged to get the Pertussis vaccine after an increase in whooping cough KOLNMayo Clinic Minute: What is whooping cough? Mayo ClinicWhooping cough surges in state, health department says WBAYWhooping cough wave now worst in almost a decade amid back-to-school surge CBS News