Not All E. Coli Are Created Equal
Brett Smith for redOrbit.com - Your Universe Online New research from Mercyhurst University and the University at Buffalo recently suggested that current testing methods for E. coli in lakes and rivers are insufficient. According to the...
Latest Gram negative bacteria Stories
A lawsuit filed against the Holiday Inn Bordeaux in Fayetteville alleges that an Asheville woman contracted Salmonella after eating food at the hotel. She is represented by Seattle-based Marler Clark. FAYETTEVILLE, NC (PRWEB) June 05, 2013 Seattle-based Marler Clark filed a third lawsuit* against the Holiday Inn Bordeaux today. The lawsuit was filed in Cumberland County Superior Court on behalf of Asheville resident Lacey Townsend, who alleges she became ill with a Salmonella infection...
Marler Clark, the nation's leading law firm representing victims of foodborne illness outbreaks, filed two lawsuits against the Fayetteville, NC Holiday Inn Bordeaux on behalf of women who allegedly contracted Salmonella after eating at the hotel's restaurants. Fayetteville, NC (PRWEB) May 29, 2013 Marler Clark, the nation’s leading law firm representing victims of foodborne illness outbreaks, and Fayetteville lawyer Steven Lawrence filed two lawsuits Tuesday against the Holiday...
Possibly energy-conserving, switch suggests metabolic changes that researchers might exploit to fight systemic illness For the first time, researchers have found a particular kind of molecular switch in the food poisoning bacteria Salmonella Typhimurium under infection-like conditions. This switch, using a process called S-thiolation, appears to be used by the bacteria to respond to changes in the environment during infection and might protect it from harm, researchers report this week...
How does the bacterium Shigella—the cause of a deadly diarrheal disease—detect that it's in a human host? Ohio University scientists have found that a biological "RNA thermometer" monitors whether the environment is right for the bacterium to produce the factors it needs to survive within the body, according to a study published May 21 in the journal PLOS ONE. The scientists have been seeking more information about the genetic pathways of Shigella in the hope of finding new treatment...
The contribution of H. pylori and smoking trends to the decline in gastric cancer in US men. Trends in Helicobacter pylori (H. pylori) and smoking explain a significant proportion of the decline of intestinal-type noncardia gastric adenocarcinoma (NCGA) incidence in US men between 1978 and 2008, and are estimated to continue to contribute to further declines between 2008 and 2040. These are the conclusions of a study by Jennifer M. Yeh of the Center for Health Decision Science at the...
Food microbiology laboratories continue to submit false negative results and false positive results on a routine basis. A retrospective study of nearly 40,000 proficiency test results over the past 14 years, presented today at the 113th General Meeting of the American Society for Microbiology, examined the ability of food laboratories to detect or rule out the presence of Escherichia coli O157:H7, Salmonella, Listeria monocytogenes, and Campylobacter. "There is concern when laboratories...
Michael Harper for redOrbit.com – Your Universe Online Just when you thought it was safe to take a dip in your local watering hole this summer, the Centers for Disease Control and Prevention (CDC) has released a study which found that many swimmers leave behind a little more than a good time in the pool. According to the health agency's data, more than half of the pools they tested contained fecal matter left behind by swimmers. More specifically, the study found that 58 percent of...
Research could help in battle against infections that do not respond to powerful drugs In biology, we often think of natural selection and survival of the fittest. What about survival of the luckiest? Like pioneers in search of a better life, bacteria on a surface wander around and often organize into highly resilient communities, known as biofilms. It turns out that a lucky few bacteria become the elite cells that start the colonies, and they organize in a rich-get-richer pattern...
Two genome-wide association studies and a subsequent meta-analysis have found that certain genetic variations are associated with susceptibility to Helicobacter pylori, a bacteria that is a major cause of gastritis and stomach ulcers and is linked to stomach cancer, findings that may help explain some of the observed variation in individual risk for H pylori infection, according to a study in the May 8 issue of JAMA. "[H pylori] is the major cause of gastritis (80 percent) and...
To infect its host, the respiratory pathogen Pseudomonas aeruginosa takes an ordinary protein usually involved in making other proteins and adds three small molecules to turn it into a key for gaining access to human cells. In a study to be published May 7 in mBio®, the online open-access journal of the American Society for Microbiology, scientists at Emory University School of Medicine, the University of Virginia, and Universidad de las Islas Baleares in Mallorca, Spain, uncover this...
Latest Gram negative bacteria Reference Libraries
Wolbachia is a genus of bacteria which infects arthropod species, including a high proportion of insects (~60% of species). It is one of the world's most common parasitic microbes and possibly the most common reproductive parasite in biosphere. Studies have suggested that 25-70% of all insect species are estimated to be potential hosts. Marshall Hertig and Burt Wolbach first identified the bacterium in 1924 in a species of mosquito. Hertig described the genus as Wolbachia pipientis. Not...
Serratia marcescens is a species of Gram-negative, rod-shaped bacterium in the family Enterobacteriaceae. S. marcescens is involved in nosocomial infections particularly catheter-associated bacteremia. It is commonly found in respiratory and urinarty tracts of hospitalized adults and often in the gastrointestinal system of children. It is commonly found growing in bathrooms due to its preference for damp conditions. It manifests as a pink discoloration and a slimy film feeding off...
Salmonella enterica is a subspecies of Salmonella enterica, the rod shaped, flagellated, aerobic, Gram-negative bacterium. It is a member of the genus Salmonella and many of the pathogenic serovars of the S. enterica species are in this subspecies. Serovars can be designated fully or in a shortened form. The genus, Salmonella, is on the short form lists which are followed by the capitalized and non-italicized serovar. Each serovar can have many strains as well, which allows for a rapid...
Rickettsia rickettsii is a gram-negative bacterium native to the New World and causes the malady known as Rocky Mountain spotted fever (RMSF). It is transmitted through the bit of an infected tick when it feeds on animals and humans. Humans are not necessary hosts in the rickettsia-tick life cycle but they can be. S. Burt Wolbach created the first detailed description of the etiologic agent in 1919. He recognized it as an intracellular bacterium seen most frequently in endothelial cells....
Pseudomonas aeruginosa is a common bacterium that can cause disease in animals and humans. It can be found in soil, water, skin flora, and most man-made environments throughout the world. It thrives in normal or hypoxic atmospheres; due to this it has colonized many natural and artificial environments. It can infect animals with damaged tissue or people with reduced immunity. Symptoms are generalized inflammation and sepsis. It can be fatal if colonization occurs in critical body organs,...
