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Mary Mallon (September 23, 1869 – November 11, 1938), commonly known as Typhoid Mary, was an Irish-born American cook who is believed to have infected between 51 and 122 people with typhoid fever. The infections caused three confirmed deaths, with unconfirmed estimates of as many as 50.
Typhoid fever, also known simply as typhoid, is a disease caused by Salmonella enterica serotype Typhi bacteria, also called Salmonella Typhi. [2] [3] Symptoms vary from mild to severe, and usually begin six to 30 days after exposure. [4] [5] Often there is a gradual onset of a high fever over several days. [4]
During the American Civil War, 81,360 Union soldiers died of typhoid or dysentery, far more than died of battle wounds. [25] In the late 19th century, the typhoid fever mortality rate in Chicago averaged 65 per 100,000 people a year. The worst year was 1891, when the typhoid death rate was 174 per 100,000 people. [26]
He was described as 'Major, US Army', in the entry for 1907 in the New York City Department of Health and was identified by Centennial Newspaper for the discovery of the carrier, Typhoid Mary. [3] From 1923–to 1928 he was the managing director of the American Society for the Control of Cancer, which later changed its name to the American ...
The chlorination of public drinking water led to the sharp reduction of typhoid in developed nations. [8] In typhoid-endemic countries, Typhoid vaccines have been shown to prevent 40 to 90% of cases during the first two years, [ 9 ] and may have some effect for up to seven years.
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Typhoid fever is caused by the bacterium Salmonella enterica Serovar Typhi. [ 37 ] In Canada alone, the typhus epidemic of 1847 killed more than 20,000 people from 1847 to 1848, mainly Irish immigrants in fever sheds and other forms of quarantine, who had contracted the disease aboard the crowded coffin ships in fleeing the Great Irish Famine .
In 1964, there was an outbreak of typhoid in the city of Aberdeen, Scotland.The first two cases were identified on 20 May 1964; eventually over 400 cases were diagnosed and the patients were quarantined at the City Hospital in Urquhart Road, Woodend Hospital in Eday Road, and Tor-na-Dee Hospital in Milltimber which was used as an overflow hospital for typhoid cases. [1]