lever detective work by Dr. George Soper, a sanitary engineer employed by the New York Department of ... Health, traced the disease to Mary Mallon. Unfortunately, by the time Soper had identified Mallon as ... Mallon's trail, Dr. Soper discovered that the woman changed jobs frequently; wherever she worked, someone
CHAP 6. HEALTH SCIENCES: Medical Mysteries SolvedReading 2: Imprisoned without a Trial: The Story of Typhoid Mary재판 없이 수감되다: 장티푸스 메리 이야기 1. Mary Mallo..