According to a state database, more than 1,400 cases of pertussis were reported in 2025. It's a five-year high for the state.

Whooping cough cases are surging in California with rates returning to pre-pandemic levels, medical experts said. As of April 26, a total of 590 Californians had contracted the highly contagious ...

With whooping cough cases on the rise, you might be wondering how to protect your baby or what signs to watch for. A persistent cough can be worrying, especially when infections are spreading, so ...