You are the provider on a Pediatric floor in the hospital. A…

You are the provider on a Pediatric floor in the hospital. A new admission is brought in for observation due to consistent bloody diarrhea with GI upset. The patient’s mother is trying to give you the child’s history, but she is distress as she has two other children with her, and no one has had nap time. The mother explained that the child has some kind of French named disease but can’t recall the exact name. You as a brilliant microbiologist student remembered that the associated disease name was called Guillain-Barre Syndrome. The next step is to run routine labs and get a gram stain. The labs showed a gram-negative bacterium that was partially comma shaped. What is the causative agent and the first line treatment?