Mary Mallon, commonly known as Typhoid Mary, was an Irish-born cook who lived in the United States from a young age and is believed to have infected up to fifty-seven people with the bacteria that cau
Mallon, c. 1909
George Soper, c. 1915
Mallon, nearest the camera, in hospital
Article from the June 20, 1909, of the New York American, showing Mallon adding skulls to a frying pan
Salmonella enterica subsp. enterica is a subspecies of Salmonella enterica, the rod-shaped, flagellated, aerobic, Gram-negative bacterium. Many of the pathogenic serovars of the S. enterica species ar
Mary Mallon
…cause typhoid fever. The infections caused three confirmed deaths. She was the first person in the U.S. to be identified as an asymptomatic carrier of Salmonella Typhi bacteria. Between 1897 and 1907, Mallon worked at the houses of several New York-based families; members of four of the households contracted typhoid…