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1938 – Death of Mary Mallon (born in Cookstown, County Tyrone), also known as Typhoid Mary. She was the first person in the United States identified as an asymptomatic carrier of the pathogen associated with typhoid fever.
Mary Mallon was born in 1869 in Cookstown, County Tyrone, Ireland. She emigrated from Ireland to the United States in 1884. An Irish immigrant cook, Mallon became the focus of one of the best-known…