What to know about whooping cough as US cases surge to pre-pandemic levels NBC BostonDramatic Jump In Whooping Cough Cases The Weather ChannelWhooping cough and walking pneumonia cases are up. Here’s what to know and how to help keep your family safe. CBS NewsWhat are symptoms of whooping cough? Outbreak hits California amid nationwide surge in pertussis ABC7 Los AngelesWhooping cough, or pertussis, cases on the rise in Galveston County, mirroring nationwide spike reported by CDC ABC13 Houston