This file photo shows an empty bottle of Tetanus, Diphthera and Pertussis, (whooping cough) vaccine. Washington state has seen its pertussis surge from 2024 carry over into the early months of 2025.

Nov. 7—This year could shape up to be the worst year for whooping cough Washington has seen in over a decade. State health officials counted 1,193 cases of whooping cough, or pertussis, across 31 ...

Washington residents are being alerted to a big increase in whooping cough cases in the state. The Washington State Department of Health (DOH) reported incidents of pertussis, commonly known as ...

PORTLAND, Ore. (KOIN) – Health officials in Washington state are warning about a “dramatic surge” in whooping cough cases seen last year amid a decrease in vaccination rates. On Friday, the Washington ...

BELLINGHAM – Just four months into 2025, Washington had recorded more cases of pertussis, better known as whooping cough, than it had in all but three full years since 1960. But as alarming as that ...