Salmonella

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Related to Salmonella enteritidis: Staphylococcal enteritis

Salmonella

[‚sal·mə′nel·ə]
(microbiology)
A genus of gram-negative, facultatively anaerobic bacteria belonging to the family Enterobacteriaceae that cause enteric infections with or without blood invasion. Most species are motile, utilize citrate, decarboxylate ornithine, form gas from glucose, and produce hydrogen sulfide. Salmonellae do not ferment lactose, produce indole, or split urea; the Voges-Proskauer reaction is negative.

Salmonella

 

a genus of nonsporogenous rod-shaped bacteria that are 1–7 μm long and approximately 0.3–0.7 μm wide. It includes gram-negative facultative aerobes, most of which are motile because they are peritrichous. Salmonella was named in honor of the American pathologist D. E. Salmon (1850–1914).

Salmonellas form round grayish white colonies on solid nutrient mediums and an opacity and sediment and sometimes a film when grown in broth. They ferment carbohydrates, including glucose, mannose, xylose, and dextrin, and alcohols, including inositol and dulcite; an acid and sometimes a gas are formed as well.

Salmonellas generally inhabit the intestine of animals and man. Most belong to pathogenic species that produce various antigens, including the thermolabile flagellate H antigen and the O and V antigens, which consist of carbohydrates. There are more than 20 species in the genus, with more than 1,200 serotypes that differ in antigenic structure and biochemical properties. Among salmonellas are the causative agents of typhoid fever and paratyphoid in humans and salmonelloses in humans and animals.

A. A. IMSHENETSKII

References in periodicals archive ?
Characterization of the innate and adaptive immunity to Salmonella enteritidis PT1 infection in four broiler lines.
Six cases of foodborne infection caused by Salmonella Enteritidis occurred on the island of Tahiti in October 2011, alerting public health authorities to an abnormal increase of these infections in humans.
In 2002 throughout the European Commission, 70% of human salmonellosis cases were caused by Enteritidis serovar and 17% of Typhimerum [13], while in the United States, Salmonella Enteritidis was the most frequently gastroenteritis incriminated (24.
To learn more about SE Guard and Salmonella enteritidis poultry vaccination, visit www.
But could the common house fly, Musca domestica, also play a role in spreading food poisoning bacteria such as Salmonella enteritidis to chickens--and their eggs--even before the foods get into the marketing chain?
The starting baseline in Wales - and the rest of the UK - will be 8% prevalence of salmonella enteritidis and s.
A multicounty outbreak of Salmonella enteritidis in the San Francisco Bay area of California in 2005 was traced to overripe tomatoes sold by a single grower.
The ESD has been tested extensively in clean lab areas, in exhaust air from poultry houses, and in caged layer rooms with birds infected with Salmonella enteritidis, where up to 20-fold improvements have been seen compared to standard settling plates (better performance than a well known and widely used medium-volume impaction sampler costing approximately 100 times as much).
The incidence of Salmonella Enteritidis, a common Salmonella serotype, has not changed significantly since 1996, demonstrating that additional efforts are needed to control this pathogen.
Joint cultures were positive for Salmonella enteritidis that was successfully treated with a 6-week course of IV ceftriaxone.

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