Sara Josephine Baker was an American physician notable for making contributions to public health, known for twice tracking down which infamous index case better known as Typhoid Mary,  the first person in the United States identified as an asymptomatic carrier of the pathogen associated with typhoid fever, her name?
Sara Josephine Baker Sara Josephine Baker (November 15, 1873 – February 22, 1945) was an American physician notable for making contributions to public health, especially in the immigrant communities of New York City. Her fight against the damage that widespread urban poverty and ignorance caused to children, especially newborns, is perhaps her most lasting legacy. In 1917, she noted that babies born in the United States faced a higher mortality rate than soldiers fighting in World War I, drawing a great deal of attention to her cause. She also is known for (twice) tracking down Mary Mallon, the infamous index case known as Typhoid Mary.
USS Mercy (AH-4) USS "Mercy" (ID-1305/AH-4) was a hospital ship in the United States Navy during World War I. She was the first U.S. Navy ship of that name. The ship was previously known as SS "Saratoga, a steamer for the Ward Line on the New York to Havana route, and considered the fastest steamship in coastal trade. Before being purchased by the Navy, the ship was briefly employed as United States Army transport ship USAT "Saratoga, a career that ended after a collision off Staten Island, New York.