The expression “Typhoid Mary”, a healthy person who makes other people sick, came from the true story of Mary Mallon and her infected gall bladder. She caused more than ten documented epidemics of typhoid fever and at least three deaths. Now we know how the epidemics could have been prevented and what could have been done to help her.
Mary Mallon was born in 1869 in Ireland and immigrated to the United States, at age 15, in 1884. She worked as a cook for many wealthy New York families and in several restaurants. In 1900, within two weeks of starting a new job, she disappeared after the entire family came down with typhoid fever, which causes fever, horrible cramps, diarrhea and even death. Then an epidemic of typhoid fever was traced to a specific restaurant in New York and by the time the investigators arrived, they learned that Mary Mallon had worked there but had disappeared.
At age 32, she caused the same diarrhea, cramps and high fevers in a family in Manhattan, only this time another employee died of the disease. Soon after that, she caused another bout of typhoid fever in a family of eight. At age 37 (1906), she caused an epidemic in a family of Oyster Bay, Long Island. The epidemics continued with every new employment followed by her disappearance.
Made Famous by a Medical Journal On June 15, 1907 the investigation of the episode in Oyster Bay was published in the Journal of the American Medical Association. The family had hired an Irish woman about 40 years of age, tall, heavy, and single, who appeared to be in perfect health. She disappeared three weeks after the outbreak started and left no forwarding address. Her next appearance occurred in a Park Avenue penthouse where one of the infected people died. In 1908, the Journal of the American Medical Association called her Typhoid Mary.
Mary Mallon refused health authorities’ requests to supply urine or feces samples to be cultured for the typhoid fever bacteria, Salmonella typhosa. Investigators found that, of the eight previous families that employed Mary Mallon, seven had suffered typhoid fever. Mary admitted that she did not wash her hands before preparing food.
First Quarantine 1907-1910 The New York City Health Department investigations led to her first arrest. She was forced to supply urine and stool samples which showed that she carried Salmonella typhosa. At that time, doctors knew that the reason people can carry typhoid fever bacteria and not be sick is that it grows in a person’s gall bladder. Some carriers can be cured by having their gall bladders removed, but Mary refused to have the surgery.
She was kept in isolation for three years and released in 1910, after agreeing to stop working as a cook and take precautions to protect others from infection. She was given a job cleaning clothes. However, she changed her name to Mary Brown and resumed her work as a cook. Over the next five years, the epidemics continued, but she would disappear before she could be caught and reappear later in another restaurant under another assumed name.
Second Quarantine 1915-1938 Before she was put in isolation a second time, she had caused at least ten proven outbreaks of typhoid fever and at least three deaths. She was arrested a second time and remained confined for the rest of her life. She worked as a technician in the prison’s laboratory.
At age 63, she was paralyzed by a stroke and at age 69, she died of pneumonia, 31 years after her first epidemic. Her gall bladder was teeming with live typhoid bacteria and the authorities wisely cremated her body.
Today Doctors Can Cure Typhoid Carriers Typhoid Mary carried the typhoid fever germ in her gall bladder even though she, herself, was not sick. The germs traveled from her gall bladder down the common bile duct, into the intestines and out in her stool to her hands. If it happened today, she would not have been placed in quarantine, she would be cured by taking antibiotics or by having her gall bladder removed.
If You Have Had Typhoid Fever, You Must Be Checked A study in the British Journal, Lancet, showed that people who carry typhoid fever germs in their gall bladders are at increased risk for developing cancers, even though they may have no symptoms whatever (January 8, 1994 343:83-84). All people who have had typhoid fever and appear to have recovered should have cultures done to see if they still carry the typhoid fever germ. If they do, they may need to take antibiotics or have their gall bladders removed. What a difference a century makes.
Mary Mallon, "Typhoid Mary"
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