Listeriosis, also known as listeria infection, is related to gastroenteritis and meningoencephalitis, and has symptoms including nausea, vomiting and diarrhea. An important gene associated with Listeriosis is IDO1 (Indoleamine 2,3-Dioxygenase 1), and among its related pathways/superpathways are Innate Immune System and TGF-Beta Pathway. The drug Amoxicillin has been mentioned in the context of this disorder. Affiliated tissues include brain and liver, and related phenotypes are fever and vomiting