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Salmonella typhimurium

Under a magnification of 2500X, this colorized scanning electron micrograph (SEM) revealed the presence of a large number of Gram-negative Salmonella typhimurium bacteria that had been isolated from a pure culture. See PHIL 10984 for a black and white version of this image. Read More

Experiment forces bacteria into a head-to-head competition for evolutionary dominance

A unique experiment at Rice University that forces bacteria into a head-to-head competition for evolutionary dominance has yielded new insights about the way Darwinian selection plays out at the molecular level. An exacting new analysis of the experiment has revealed precisely how specific genet... Read More

Antibacterial agents may be raising greenhouse gas levels

Smelly feet may be the price we have to pay for saving the planet. A new study reported by New Scientist has discovered that nanoparticles commonly found in antibacterial socks may be inadvertently raising levels of greenhouse gases.

Researchers are concerned that silver nanoparticles - anti... Read More

N.Y. lawmakers hatch plan to require salmonella vaccinations

Two New York lawmakers want farmers to vaccinate their chickens against salmonella, The Associated Press reported.

Sen. Daniel Squadron and Assemblyman Brian Kavanagh announced their proposal in response to the nationwide recall of more than half a billion eggs linked to nearly 1,500 cases of... Read More

Study points to key genetic driver of severe allergic asthma

Scientists have identified a genetic basis for determining the severity of allergic asthma in experimental models of the disease.

The study may help in the search for future therapeutic strategies to fight a growing medical problem that currently lacks effective treatments, researchers from C... Read More

New Theory on the Origins of Life Gains Support

The question of where and how life on Earth started has been with humans ever since the earliest days. Numerous shamans, witches, alchemists, priests and scientists attempted to uncover the answer, but their ideas and proposals oftentimes failed to produce any evidence of what they were arguing ... Read More

Wheat and apple DNA sequenced, providing clues that may help eliminate famine

An apple a day keeps the doctor away, but can knowing its genetic secrets help feed the 9 billion people expected on this planet by 2050? Scientists hope so, especially considering they have added wheat this week to the list of crops that have had their genetic instruction set read.

Wheat, w... Read More

How does E. coli stay so young-looking? Bacteria have fountain of youth

They say Ponce de Leon looked for the Fountain of Youth in Florida, but he might have saved himself some trouble by looking a bit closer to home. A study just released by mBio links an enzyme present in almost all organisms to the reduction of age-related products called Amadori-modified protei... Read More

Bacteria seem to be doing a good cleanup job in gulf

As efforts continue to clean the oil that gushed from the blown-out well in the Gulf of Mexico, a team of scientists has found that nature's microbial helpers are hard at work too — and doing a better job than researchers had expected.

Data collected in May and June showed populations of carb... Read More

New Thinking on C-section Antibiotics

In order to minimize the risk of infection in mothers, women giving birth to babies by caesarean section should routinely receive antibiotics an hour before the surgery, according to a new recommendation issued Monday by a national doctor group.

Currently, women who undergo caesareans often r... Read More

Egg cooling would lessen salmonella illnesses

While people across the country have been sickened by a recent outbreak of salmonella poisoning possibly linked to eggs from Iowa producers, a Purdue University food scientist believes the poultry industry could implement a rapid egg cooling technology to reduce future outbreaks.

Kevin Keener... Read More

Drug for Ebola virus to undergo human trials after it prevents deadly infection in monkeys

A drug to treat the deadly Ebola virus is one step closer today, after a new treatment was used to save infected monkeys. Clinical trials have now been approved on a small group of human volunteers in the U.S. Ebola causes death in 90 per cent of human cases but is always fatal to apes.

The ... Read More

HIV Virus May Hide in Brain

The brain can be a convenient hiding place for HIV, the virus that causes AIDS.

That's the finding of Swedish researchers who analyzed samples from about 70 HIV-infected patients who'd been taking anti-HIV drugs. The tests showed that about 10 percent of the patients -- a larger proportion th... Read More

Murine leukemia virus found in in 86 percent of chronic fatigue patients

Researchers have linked a second type of mouse virus to a baffling condition called chronic fatigue syndrome, but said their findings do not yet prove that any virus causes the symptoms.

They found evidence of murine leukemia virus, which causes cancer in mice, in 86 percent of chronic fatigu... Read More

Scientists Unveil Structure of Adenovirus, the Largest High-Resolution Complex Ever Found

After more than a decade of research, Scripps Research Institute scientists have pieced together the structure of a human adenovirus -- the largest complex ever determined at atomic resolution. The new findings about the virus, which causes respiratory, eye, and gastrointestinal infections, may ... Read More

Broccoli 'boosts' healthy gut

Extracts of broccoli and banana may help in fighting stomach problems, research suggests. Laboratory studies show fibres from the vegetables may boost the body's natural defences against stomach infections. Trials are under way to see if they could be used as a medical food for patients with Cro... Read More

Investigation finds filthy spouts on public drinking fountains

Ontario Premier Dalton McGuinty would be better off drinking from a dog bowl than the water cooler he shares with his colleagues at Queen’s Park, a Toronto Star investigation reveals.

The Star collected and analyzed bacteria samples swabbed from spouts of 20 public water fountains and free-st... Read More

Vaccine cuts child cases of bacterial pneumonia in UK, says study

The number of children admitted to English hospitals with bacterial pneumonia decreased by a fifth in the two years following the introduction of a vaccine to combat the disease, according to a new study published today in the journal Thorax.

In September 2006, a vaccine known as PCV7 was int... Read More

Oregano supplement reduces methane emissions in cows and improves milk production

"Cow belches, a major source of greenhouse gases, could be decreased by an unusual feed supplement developed by a Penn State dairy scientist.

In a series of laboratory experiments and a live animal test, an oregano-based supplement not only decreased methane emissions in dairy cows by 40 perc... Read More

First West Nile virus infections confirmed in humans in Greece

Between early July and 22 August 2010, 81 cases of West Nile neuroinvasive disease were reported in the region of Central Macedonia, northern Greece. The median age of cases was 70 years. Encephalitis, meningoencephalitis or aseptic meningitis occurred mainly in patients aged 50 years or older. ... Read More
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