In March 1907, the lives of three remarkable people collided at a New York City brownstone where Mary Mallon worked as a cook. They were brought together by typhoid fever, a dreaded scourge that killed tens of thousands of Americans each year. Fatal Fever: Tracking Down Typhoid Mary is the first middle-grade trade book that tells the true story of the woman who unwittingly spread deadly bacteria, the epidemiologist who discovered her trail of infection, and the health department that decided her fate. This gripping story follows this tragic disease as it shatters lives from the early twentieth century to today. It will keep readers on the edges of the seats wondering what happened to Mary and the innocent typhoid victims. With glossary, timeline, list of well-known typhoid sufferers and victims, further resource section, author's note, and source notes.