bacteria

NASA's arsenic life study stirs up controversy, criticism

The discovery of what a NASA scientist claims is an example of alien life has provoked an exciting controversy among scientists.

Car steering wheel dirtier than public toilet seat--study

If you thought public toilet to be dirtiest of all, probably you are wrong, as a new study claims that a car steering is far filthier than a public toilet seat.

Salmonella bacteria may help fight cancer--study

Did you ever imagine that salmonella, a dangerous bacteria, linked to many food recalls could come as a rescue to people suffering from cancer?

Scientist at NASA claims to discover alien life

A scientist at NASA claims to have discovered an alien life form, in what is seen as one of the most controversial and surprising claims by a NASA scientist.

Skippy peanut butter recalled over salmonella concern

In yet another recall linked to salmonella, Unilever United States, Inc., has called back Skippy peanut butter spreads.

Gum disease ups breast cancer risk--study

Women may be at greater risk of breast cancer if they have gum disease or missing teeth, according to the findings of a recent study.

Salmonella outbreak in 15 states linked to alfalfa sprouts

In yet another case of food contamination linked to salmonella outbreak, 89 people have fallen sick in 15 states including Washington, D.C., the Center for Disease and Prevention (CDC) reported Thursday.

Texas food-processing plant tests positive for fatal bacteria

A closed food processing plant in Texas tested positive for listeria, a foodborne pathogen, the U.S. Food and Drug Administration said Wednesday.

Listeria 'tricks' cells to infect humans

West Lafayette, Ind. -- Listeria bacteria, a source of food-borne illness, tricks cells in the body's intestines to pass through those cells and make people sick, researchers say.

Researchers at Purdue University found that listeria, even in low doses, somehow triggers intestinal cells to express a protein that acts as a receptor for listeria, a university release said.

This may allow the bacteria to enter the cells in the intestinal wall and exit into a person's bloodstream, the researchers say.

Bacteria may signal through nanowires

Los Angeles -- Some bacteria can grow electrical "hair" that allows them to link up in big biological circuits and create large cooperating colonies, U.S. researchers say.

The finding by a University of Southern California biophysicist suggests microbial colonies can grow, communicate and share energy through electrically conducting hairs known as nanowires, ScienceDaily.com reported Monday.

"This is the first measurement of electron transport along biological nanowires produced by bacteria," Mohamed El-Naggar, assistant professor of physics and astronomy at USC, said.

NJ pet product company recalls dog beef treats after salmonella concerns

The salmonella organisms seem to be on a contamination spree in the United States! After tainting several beef products and eggs over the last few months, the latest target of the fast spreading bacteria is the leading pet product company in the nation.

Toxic bacteria present in Greek lake

Athens, Greece -- A type of bacteria that can present a toxic threat exists in the waters of a lake in northern Greece, scientists say.

The bacteria, which can form a dangerous algal bloom on the surface of the water, has existed in Lake Kastoria for two decades, but recent DNA tests confirmed the bacteria, called microcystis, produces toxins that could a pose a risk to public health, Kathimerini newspaper reported.

Experts from the Biology Department at Thessaloniki's Aristotle University say they could not determine whether the concentration of the bacteria in the water is currently at a potentially dangerous level.