Daisy literally dies of Roman fever, but some interpretations say that "exposure" figuratively killed her. This means that she was destroyed by negative attention. In Henry James’ story, Daisy Miller died of Malaria (Roman fever) at the end of the story (the disease disrupts any perspective of romance between Daisy and Winterbourne) - a story about an innocent American girl wrongly disgraced by society. In “The Roman Fever” by Edith Wharton who regarded Henry James as her mentor, the disease is just an interim episode (it functions as a point in the plot of the story that concerns the lives of Mrs. Horace Ansley and Mrs. Delphin Slade) - a story about female revenge under disguise.
Gender inequality is pronounced in “Daisy Miller” (Mrs. Costello knows that Daisy will visit the old castle with Mr.Winterbourne, she blamed Daisy and refused to meet her. One assumes that she should be on the same boat with Daisy; however, she despised and excluded Daisy) and in “Roman Fever” (Mrs. Slade spent all her energy to compete with and do harm to her friend but did not say any words against her husband).
