(Medical Xpress)—A new study out today reveals that the emergence and spread of a rapidly evolving invasive intestinal disease, that has a significant mortality rate (up to 45%) in infected people in sub-Saharan Africa, ...
Sep 30, 2012
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A team of researchers led by UC Davis Health System has found that human alpha-defensin 6 (HD6) – a key component of the body's innate defense system – binds to microbial surfaces and forms "nanonets" that surround, ...
Jun 21, 2012
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A new collaborative study discloses the discovery and application of a new therapeutic strategy to target the multidrug-resistant bacterium Salmonella enterica in vivo, with promising results. The results were published in ...
Mar 7, 2024
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Researchers can accurately track where typhoid fever cases are highest by monitoring environmental samples for viruses called bacteriophages that specifically infect the bacterium that causes typhoid fever. Senjuti Saha of ...
Feb 15, 2024
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Salmonella infections cause about a million deaths a year worldwide, and there is an urgent need for better vaccines for both typhoid fever and non-typhoidal Salmonella disease. New work from researchers at the UC Davis School ...
Apr 18, 2023
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A new study published in the journal Cell Reports Medicine links exposure to Salmonella bacteria to colon cancer risk.
Jan 17, 2023
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Cells in the gut send secret messages to the immune system. Thanks to new research from the La Jolla Institute for Immunology (LJI), scientists finally got a look at what they're saying.
Jul 29, 2022
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Fasting before and during exposure to Salmonella enterica bacteria protects mice from developing a full-blown infection, in part due to changes in the animals' gut microbiomes, according to new research published in PLOS ...
Aug 5, 2021
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The immune system's attempt to eliminate Salmonella bacteria from the gastrointestinal (GI) tract instead facilitates colonization of the intestinal tract and fecal shedding, according to National Institutes of Health scientists. ...
May 26, 2021
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Melbourne researchers have revealed the multiple, intertwined cell death systems that prevent the spread of the 'intracellular' bacterium Salmonella, an important cause of typhoid fever which kills more than 100,000 people ...
Jul 30, 2020
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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.
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