Related topics: food and drug administration , peanut butter



Salmonella

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S. 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

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Simple device can ensure food gets to the store bacteria free

Simple device can ensure food gets to the store bacteria free

Chemistry / Biochemistry

created Mar 02, 2009 | popularity 4.8 / 5 (10) | comments 5

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.


New study overturns orthodoxy on how macrophages kill bacteria

New study overturns orthodoxy on how macrophages kill bacteria

Biology / Cell & Microbiology

created Apr 27, 2009 | popularity 4.9 / 5 (9) | comments 0

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 ...


Avoiding peanut butter won't solve salmonella problem

Medicine & Health / Health

created Jan 29, 2009 | popularity 3.9 / 5 (10) | comments 7

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 ...


Salmonella Spills its Secrets on the Space Shuttle

Salmonella Spills its Secrets on the Space Shuttle

Biology / Cell & Microbiology

created May 07, 2009 | popularity 4.3 / 5 (7) | comments 0

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 ...


Gut instinct: Salmonella bacteria's molecular tactics to cause illness

Biology /

created Dec 17, 2008 | popularity 5 / 5 (5) | comments 1

Hundreds of trillions of bacteria make their home in the vertebrate gut. Though many of these microbes perform helpful duties for their host, others—the pathogens—are unwelcome visitors, causing disease.


Sesame seed extract and konjac gum may help ward off Salmonella and E. coli

Chemistry /

created Aug 05, 2008 | popularity 4.6 / 5 (5) | comments 0

A new study in SCI's Journal of the Science of Food and Agriculture shows that konjac gum and sesame seed extract may offer protection against different strains of E. coli and Salmonella bacteria.


Stuffing the turkey and other Thanksgiving food-safety mistakes

Medicine & Health / Diseases

created Nov 25, 2009 | popularity 4 / 5 (5) | comments 0

(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 ...


Programmed Lysis

From foe to friend: Researchers use salmonella as a way to administer vaccines in the body

Biology /

created Jul 08, 2008 | popularity 4.7 / 5 (3) | comments 0

Researchers at the Biodesign Institute at Arizona State University have made a major step forward in their work to develop a biologically engineered organism that can effectively deliver an antigen in the ...


Salmonella's sweet tooth predicts its downfall

Salmonella's sweet tooth predicts its downfall

Biology / Biotechnology

created May 19, 2009 | popularity 5 / 5 (2) | comments 1

For the first time UK scientists have shown what the food poisoning bug Salmonella feeds on to survive as it causes infection: glucose.


Casting out devils: How salmonella kills tumors

Medicine & Health / Research

created Sep 08, 2009 | popularity 5 / 5 (2) | comments 0

Salmonella are regarded as bad guys. Hardly a summer passes without severe salmonella infections via raw egg dishes or chicken that find their way into the media. But salmonella not only harm us -- in the future they may ...


TraDIS technique tackles typhoid

TraDIS technique tackles typhoid

Medicine & Health / Genetics

created Oct 16, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- For the first time, researchers are able to look at the need for every gene in a bacterial cell in a single experiment. The new method will transform the study of gene activity and the search ...


Researchers use salmonella to administer vaccines

Researchers use salmonella to administer vaccines

Biology /

created Jul 18, 2008 | popularity 4.5 / 5 (2) | comments 2

(PhysOrg.com) -- Researchers at the Biodesign Institute at Arizona State University have made a major step forward in their work to develop a biologically engineered organism that can effectively deliver an ...


Pistachio company: Raw nuts may be bacteria source (AP)

Pistachio company: Raw nuts may be bacteria source

Medicine & Health / Health

created Mar 31, 2009 | popularity 4.5 / 5 (2) | comments 0

(AP) -- The company at the center of a nationwide pistachio recall says the salmonella contamination could have come from raw nuts during processing but not a human or animal source in its plant.


New generation of salmonella-based, single dose vaccine candidates to fight infant pneumonia

Medicine & Health / Research

created Jan 12, 2009 | popularity 5 / 5 (1) | comments 0

One of the major challenges in modern vaccinology is to engineer vectors that are highly infectious, yet don't cause illness. Trickier still is to ensure that such weapons against infectious disease can be safely disarmed, ...


Salmonella: Tough to crack when it’s in peanuts

Medicine & Health / Diseases

created Feb 11, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- For the second time in two years, a nationwide outbreak of salmonellosis has been tied to peanut products. This time, over 570 people have been sickened and over 1700 products have been taken off supermarket ...