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?
Mary Mallon Mary Mallon (September 23, 1869 – November 11, 1938), better known as Typhoid Mary, was the first person in the United States identified as an asymptomatic carrier of the pathogen associated with typhoid fever. She was presumed to have infected 51 people, three of whom died, over the course of her career as a cook. She was twice forcibly isolated by public health authorities and died after a total of nearly three decades in isolation.
Richard Morton (physician) Richard Morton (1637–1698) was an English physician who was the first to state that tubercles were always present in the tuberculosis disease of the lungs. In Morton's time, this wasting disease was termed consumption, or by its Greek name of phthisis. Recognition of the many possible symptoms of this infection belonging to a single disease was not until the 1820s and it was J.L. Schönlein in 1839 who introduced the term "tuberculosis".