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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]
The Widal test, developed in 1896 and named after its inventor, Georges-Fernand Widal, is an indirect agglutination test for enteric fever or undulant fever whereby bacteria causing typhoid fever are mixed with a serum containing specific antibodies obtained from an infected individual.
In 2000, typhoid fever caused an estimated 21.7 million illnesses and 217,000 deaths. [1] It occurs most often in children and young adults between 5 and 19 years old. [2] In 2013, it resulted in about 161,000 deaths – down from 181,000 in 1990. [3]
The 'High School Musical' heartthrob was filming the upcoming adventure show 'Killing Zac Efron' in the run-up to Christmas.
Salmonellosis is a symptomatic infection caused by bacteria of the Salmonella type. [1] It is the most common disease to be known as food poisoning (though the name refers to food-borne illness in general), these are defined as diseases, usually either infectious or toxic in nature, caused by agents that enter the body through the ingestion of food.
It usually occurs due to some infectious disease. Diagnosis of continuous fever is usually based on the clinical signs and symptoms but some biological tests, chest X-ray and CT scan are also used. [2] Typhoid fever is an example of continuous fever and it shows a characteristic step-ladder pattern, a step-wise increase in temperature with a ...
Typhoid Mary, pictured above in a 1909 tabloid, was a famous case of a subclinical infection of Salmonella enterica serovar. A subclinical infection —sometimes called a preinfection or inapparent infection —is an infection by a pathogen that causes few or no signs or symptoms of infection in the host . [ 1 ]
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]