Just like you and me, bacteria have ‘favorite’ foods – though in the case of bacteria, 'favorite' translates to those which are energetically favorable or most accessible. Different bacteria have different preferences, based on their environments and the neighboring microbes that compete for or ... Read More
Many years ago, Homo sapiens mated with Neanderthals. Today a small percentage of our genome remains Neanderthal, and in a study discussed on this episode of the science show This Week in Evolution, we show that some important genes of our innate immune response - the early response against path... Read More
Misdiagnosis can lead to severe consequences for patients, and is a serious clinical issue. The newly emerging Candida auris requires higher doses of antifungal medications to treat an infection than does C. albicans, highlighting the importance of proper diagnosis. Thus far, the most accurate d... Read More
The anaerobic, Gram-positive Clostridium difficile is a big problem. It causes rampant diarrhea and tissue necrosis, with more than 150,000 annual cases in the United States alone. Many of the disease manifestations of C. difficile are mediated by two exotoxins that C. difficile produces: TcdA a... Read More
A newly discovered virus infecting the fungus that causes white-nose syndrome in bats could help scientists and wildlife agencies track the spread of the disease that is decimating bat populations in the United States, a new study suggests.
Regional variations in this virus could provide clue... Read More
Washington, DC – July 12, 2016 – Ebola and Marburg filovirus disease outbreaks have typically occurred as isolated events, confined to central Africa. However, the recent Ebola epidemic spread to several African countries, and caused 11,000 deaths. That epidemic underscored the need to develop v... Read More
Chemosynthetic symbionts are bacteria living inside or on the surface of animals, supplying their host with food that would otherwise be unavailable. It has long been known that these bacteria fix carbon and convert it into organic forms. Microbiologist Jillian Petersen and colleagues from the U... Read More
Cold viruses cause us irritation by penetrating into our cells and transporting their RNA into the cytoplasma of the infected cells. This is the only way they can multiply. The details of how the transfer of the RNA from within the virus occurs are difficult to study. However, a new method has b... Read More
A new tool by Japan-based researchers predicts the risk of Zika virus importation and local transmission for 189 countries. Read More
Polysorbate, a safe additive found in everything from ice cream to cosmetics, has been proven to slow the toxic effects of E. coli poisoning.
Had this discovery been known before the deadly 2011 E. coli outbreak in Germany, doctors may have had one more tool to save some of victims.
The fi... Read More
Fine pore diffusers are devices that pump air into wastewater in order to stimulate biodegradation of organic matter. Aeration of wastewater incur a large maintenance cost due to the buildup of biofilm, which is one of the biggest costs to the operation of sewage treatment plants. The biofilms ... Read More
Klebsiella pneumoniae bacteria exposed to chlorhexidine-containing disinfectants can become resistant to colistin, a last resort antibiotic often used against multidrug resistant pathogens. This is the first study to link exposure to chlorhexidine with resistance to colistin in this clinically i... Read More
A newly discovered microbe is changing the way scientists think about microbes in cold climates. Marinomonas primoryensis was found in Ace Lake, Antarctica, having attached itself to ice via antifreeze proteins. After a few experiments, scientists believe that M. primoryensis attaches to ice b... Read More
Washington, DC – July 18, 2016 - Most bacteria cannot survive in the acidic environment of the human stomach, but Helicobacter pylori, a major cause of ulcers, thrives under such circumstances. Now research has shown that one of that bacterium’s regulatory proteins that helps it adapt to these s... Read More
Hospital rooms, not just the patients in them, can spread germs through contact with health care personnel, a Duke Health study reports.
“This study is a good wake-up call that health care personnel need to concentrate on the idea that the health care environment can be contaminated,” said De... Read More
Viruses may be stealthy invaders, but a study at the Weizmann Institute of Science reveals a new, chatty side of some: For the first time, viruses have been found communicating with one another. This communication – short “posts” left for kin and descendants – helps the viruses reading them to d... Read More
Scientists have confirmed that the bacteria Nitrospina is present in Antarctic Sea Ice. Nitrospina has "the genetic ability to convert mercury to a potent neurotoxin known as methylmercury". If ingested, this neurotoxin can cause developmental and physical problems for fetuses, babies, and young... Read More
A team from the Vetmeduni Vienna and the University of Natural Resources and Life Sciences, Vienna succeeded for the first time in extracting the rare compound cPM from a filamentous fungus, applying a special method. Using this substance leads to increased susceptibility of a resistant pathogen... Read More
Today in Phys.org, Martyn Dade-Robertson explores the possibility of using microbes to produce natural cement. This process, called biomineralisation, was discovered deep under water off the coast of the Greek island of Zakynthos.
Future implications for biomineralisation include self-healing ... Read More