Cases of a bacterial lung infection known as whooping cough, or pertussis, have more than doubled compared to this time last year. In this expert Q&A, Debra Langlois, M.D., a pediatrician at U-M Health C.S. Mott Children’s Hospital, explores what you can do to prevent getting whooping cough, why there is an increase in cases this year, how to treat it, and more.