As cases of whooping cough rise, CNN wellness expert Dr. Leana Wen explains what causes the respiratory illness, how it spreads and what to do to protect yourself.

Cases of whooping cough, also known as pertussis, in 2024 surpassed totals seen in recent years and marked the highest case count since the COVID-19 pandemic.

The Louisiana Department of Health has confirmed two cases of whooping cough, also known as pertussis, with one individual not vaccinated and the vaccination status of the other unknown, amid ...

Louisiana reports a sharp rise in whooping cough, with 164 cases so far in 2025, mostly affecting infants and causing two deaths.