Salmonella
Salmonellosis is an infection with bacteria called Salmonella. Salmonella germs have been known to cause illness for over 100 years. The bacteria were first isolated in 1885 by Theobald Smith from pigs. The genus name was derived from the last name of D.E. Salmon, who was Smith's director. In 1896 Salmonella infection was diagnosed in humans. Salmonella is the genus name for over 2,500 types of bacteria. Though each type is closely related each is distinctly identifiable by its specific protein. Salmonella bacteria are known to cause disease in humans, animals, and birds throughout the world. The major diseases caused by Salmonella are gastroenteritis and typhoid fever (Davis, 2010).
According to the CDC (2010) approximately 40,000 cases of salmonellosis are reported in the United States each year. Since many milder cases are not diagnosed or reported, some estimate that the actual number of infections may be thirty or more times greater. Salmonella serotype Typhimurium and Salmonella serotype Enteritidis are the most common in the United States. Salmonellosis is more common in the summer than winter. It is estimated that each year approximately 400 persons die with acute Salmonellosis (CDC, 2010).
Transmittal of Salmonella
Salmonellosis is spread to people by ingestion of Salmonella bacteria through contaminated food. Salmonella can contaminate almost any food type; however outbreaks of the disease have involved eggs, raw meat, egg products, fresh vegetables, cereal, pistachio nuts, tomatoes,...
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