Whooping cough is surging in the United States, with cases now five times higher than they were at the same point last year, according to preliminary data from the US Centers for Disease Control and Prevention that was reported Friday.

In a report published Thursday, whooping cough cases were more than four times the amount at this time last year.

14,569 cases of whooping cough have been reported in total for 2024 so far — four times higher than the agency's reported totals from this time last year. Whooping cough can last for weeks to months, with symptoms normally appearing about a week after first being exposed to a contagious person with the infection.