Related topics: food and drug administration , bacteria , peanut butter , health officials , peanut
Salmonella
hideS. bongori S. enterica
Salmonella is a genus of rod-shaped, Gram-negative, non-spore forming, predominantly motile enterobacteria with diameters around 0.7 to 1.5 µm, lengths from 2 to 5 µm, and flagella which project in all directions (i.e. peritrichous). They are chemoorganotrophs, obtaining their energy from oxidation and reduction reactions using organic sources and are facultative anaerobes; most species produce hydrogen sulfide, which can readily be detected by growing them on media containing ferrous sulfate, such as TSI. Most isolates exist in two phases; phase I is the motile phase and phase II the non-motile phase. Cultures that are non-motile upon primary culture may be swithched to the motile phase using a Craigie tube.
Salmonella are closely related to the Escherichia genus and are found worldwide in warm- and cold-blooded animals, in humans, and in nonliving habitats. They cause illnesses in humans and many animals, such as typhoid fever, paratyphoid fever, and the foodborne illness salmonellosis.
Salmonella is named for pathologist D.E. Salmon.
For more information about Salmonella, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with salmonella
Invasion without a stir
Dec 17, 2009 |
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Bacteria of the genus Salmonella cause most food-borne illnesses. The bacteria attach to cells of the intestinal wall and induce their own ingestion by cells of the intestinal epithelium. Up till now, researchers assumed ...
Biology of emergent Salmonella exposed
Nov 30, 2009 |
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Researchers have characterised a new multi drug resistant strain of Salmonella Typhimurium that is causing life-threatening disease in Africa.
Simple device can ensure food gets to the store bacteria free
Mar 02, 2009 |
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A Purdue University researcher has found a way to eliminate bacteria in packaged foods such as spinach and tomatoes, a process that could eliminate worries concerning some food-borne illnesses.
Stuffing the turkey and other Thanksgiving food-safety mistakes
Nov 25, 2009 |
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(PhysOrg.com) -- What would a Thanksgiving turkey be without its stuffing, and what better place for that stuffing than inside the turkey? Despite the tradition involved, a food-safety specialist in Penn State's College of ...
New study overturns orthodoxy on how macrophages kill bacteria
Apr 27, 2009 |
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For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois ...
Carbon nanotubes and aptamers: Vew biosensor detects extremely low bacteria concentrations quickly, easily, reliably
Chemistry / Analytical Chemistry
Jul 20, 2009 |
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(PhysOrg.com) -- Bacterial diseases are usually detected by first enriching samples, then separating, identifying, and counting the bacteria. This type of procedure usually takes at least two days after arrival ...
Vi typhoid vaccine proves highly effective in young children
Jul 22, 2009 |
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A new study has found that a currently available yet underused vaccine against typhoid fever is highly effective in young children and protects unvaccinated neighbors of vaccinees.
FDA says to avoid pistachios amid salmonella scare
Mar 31, 2009 |
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(AP) -- In another food scare sure to rattle consumers who watched the national salmonella outbreak in peanuts unfold, federal food officials are now warning people not to eat any food containing pistachios, which could ...
Salmonella Spills its Secrets on the Space Shuttle
May 07, 2009 |
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Salmonella, what's gotten into you? Researchers have been asking themselves this question ever since Salmonella bacteria grown on board the space shuttle returned to Earth 3 to 7 times more virulent than S ...
Salmonella's sweet tooth predicts its downfall
May 19, 2009 |
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For the first time UK scientists have shown what the food poisoning bug Salmonella feeds on to survive as it causes infection: glucose.
Avoiding peanut butter won't solve salmonella problem
Jan 29, 2009 |
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It's as if the whole nation just acquired a peanut allergy. As a salmonella outbreak sickens hundreds of people across the country, federal health officials are warning consumers not to eat products containing peanut butter ...
Pistachio warning could signal food safety shift
Apr 01, 2009 |
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(AP) -- It could take weeks before health officials know exactly which pistachio products may be tainted with salmonella, but they've already issued a sweeping warning to avoid eating the nuts or foods containing ...
Study shows how Salmonella survives in environment
Mar 23, 2009 |
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Scientists at the University of Liverpool have demonstrated how a single-celled organism, living freely in the environment, could be a source of Salmonella transmission to animals and humans.
CDC: US food poisoning cases held steady in 2008
Apr 09, 2009 |
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(AP) -- Americans didn't suffer more food poisoning last year despite high-profile outbreaks involving peppers, peanut butter and other foods, according to a government report released Thursday.
Researchers uncover secrets of salmonella's stealth attack
Apr 16, 2009 |
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A single crafty protein allows the deadly bacterium Salmonella enterica to both invade cells lining the intestine and hijack cellular functions to avoid destruction, Yale researchers report in the April 17 issue of the jo ...
