Whooping cough cases surge nationwide, including California

The CDC reports a surge in whooping cough cases, with nearly six times as many cases now compared to this time last year. In California alone, there have been about 1,500 cases—a 215% increase from 2023. Dr. Peter Chin-Hong, an infectious disease expert at UCSF, joined us on 'The Nine' to discuss the risks for infants and young children, as severe coughing fits can make it difficult for them to breathe.