U.S. health officials say whooping cough is at its highest level in a decade for this time of year. The Centers for Disease Control and Prevention said Thursday that so far this year there have been about 18,

Only four years since 1958 have seen a higher number of whooping cough cases, according to the Washington state Department of Health.

The CDC reported that more than five times as many whooping cough cases have been recorded compared to 2023 in a return to pre-pandemic levels.