Exposure to light and possibly photosynthesis itself could be helping disease-causing bacteria to be internalized by lettuce leaves, making them impervious to washing, according to research published in the October issue of the journal Applied and Environmental Microbiology.
Salmonella enteri... Read More
Enterobacter sakazakii, a gram-negative bacillus, is a rare cause of bloodstream and central nervous system infections. In 2007, following extensive study, it was proposed that the original taxonomy of Enterobacter sakazakii be revised, to consist of five new species moved to a new genus, ide... Read More
Animal, human and environmental health are inexorably intertwined. Diseases are making the jump from animals to humans and vice-versa at an increasing pace. The emergence of animal borne diseases such as Avian flu, Ebola, and most recently H1N1 (swine flu), demonstrate the need for an integra... Read More
As soon as swine flu vaccinations start next month, some people getting them will drop dead of heart attacks or strokes, some children will have seizures and some pregnant women will miscarry.
But those events will not necessarily have anything to do with the vaccine. That poses a public rela... Read More
Using state-of-the-art electron microscopy techniques, a team led by researchers from Caltech has for the first time visualized and described the precise arrangement of chemoreceptors—the receptors that sense and respond to chemical stimuli—in bacteria. In addition, they have found that this spe... Read More
The retroviruses which gave rise to HIV have been battling it out with mammal immune systems since mammals first evolved around 100 million years ago – about 85 million years earlier than previously thought, scientists now believe.
The remains of an ancient HIV-like virus have been discovered... Read More
Antibiotic resistance has been a significant problem for hospitals and health-care facilities for more than a decade. But despite the need for new treatment options, there have been only two new classes of antibiotics developed in the last 40 years.
Now a promising discovery by McMaster Unive... Read More
For the first time, ETH Zurich scientists have examined the genes and proteins of bacteria that live on leaves to clarify which unicellular organisms are found on leaf surfaces and what they are doing there.
Bacteria are everywhere: in the ground, on the seabed, in boiling hot sources, in the... Read More
University of Toronto researchers are part of an international team which has uncovered a previously unknown mechanism that plays an important role in the spread of listeria, the trigger behind the food-borne disease listeriosis, which caused a deadly outbreak in Canada in the summer of 2008.
... Read More
More than 3,000 people a day have a heart attack. If you're one of them the day after your swine flu shot, will you worry the vaccine was to blame and not the more likely culprit, all those burgers and fries?
The government is starting an unprecedented system to track possible side effects as... Read More
Researchers from the Howard Hughes Medical Research Institute and the Tufts University School of Medicine reported in the advance, online edition of Nature Methods this week that they have come up with a method for identifying genes needed for bacterial survival — and mapping genetic interaction... Read More
While most attempts to engineer biofuel-producing microbes have focused on well-known organisms such as yeasts and E. coli, scientists also hope to co-opt the unique metabolic functions of some of the microbial world's less-studied creatures. Anthony Sinskey and his team at MIT have been catalog... Read More
Five genetic regions have been identified that are unique to the most virulent strain of Clostridium difficile (C. difficile), the hospital superbug. Researchers writing in BioMed Central's open access journal Genome Biology studied the genome of the bacterium, looking for genes relating to moti... Read More
Yale engineers have for the first time observed and tracked E. coli bacteria moving in a liquid medium with a motion similar to that of a kayak paddle.
Their findings, which appear online September 29 in the journal Physical Review Letters, will help lead to a better understanding of how bact... Read More
The discovery of heat-loving bacteria in cold Arctic Ocean sediments could lead to development of a tool to help explorers detect oil and gas riches under the ocean’s floor, according to a Calgary-educated scientist.
But University of Calgary graduate Casey Hubert admits the application, whil... Read More
University of Central Florida Microbiology Professor Keith Ireton has uncovered a previously unknown mechanism that plays an important role in the spread of a deadly food-borne bacterium.
Listeria monocytogenes is a bacterium that can cause pregnant women to lose their fetuses and trigger fat... Read More
Scientists working to develop a vaccine for the human immunodeficiency virus (HIV) report they have created the first antigen that induces protective antibodies capable of blocking infection of human cells by genetically-diverse strains of HIV. The new antigen differs from previously-tested vacc... Read More