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Latest Virulence Stories

2013-05-07 16:17:19

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...

2013-04-16 12:37:18

Strain is evolving to be more like virulent 1800s cholera The cholera strain that transferred to Haiti in 2010 has multiple toxin gene mutations that may account for the severity of disease and is evolving to be more like an 1800s version of cholera, reports a new Northwestern Medicine study. The strain, "altered El Tor," which emerged around 2000, is known to be more virulent and to cause more severe diarrhea and dehydration than earlier strains that had been circulating since the...

2013-04-15 12:01:51

CRISPR, a system of genes that bacteria use to defend themselves against viruses, has been found to be involved in helping some bacteria evade the mammalian immune system. The results are scheduled for publication Sunday, April 14 in Nature. CRISPR is itself a sort of immune system for bacteria. Its function was discovered by dairy industry researchers seeking to prevent phages, the viruses that infect bacteria, from ruining the cultures used to make cheese and yogurt. Bacteria...

2013-04-04 15:03:51

UT Southwestern Medical Center researchers report that a pathogen annually blamed for an estimated 90 million cases of food-borne illness defeats a host's immune response by using a fat-snipping enzyme to cut off cellular communication. "Our findings provide insight into severe bacterial infectious diseases, as well as some forms of cancer, in which the attachment of fat molecules to proteins is an essential feature of the disease process," said Dr. Neal Alto, assistant professor of...

Space Station To Play Host To Infectious Disease Research
2013-02-19 05:53:07

April Flowers for redOrbit.com - Your Universe Online All biologists know performing sensitive biological experiments is a delicate affair, akin to baking a soufflé in a busy house. Few of those biologists, however, have to deal with the daily and unique challenges faced by Cheryl Nickerson, a microbiologist at Arizona State University's Biodesign Institute. Nickerson's working lab is aboard the International Space Station (ISS) hundreds of miles above Earth, traveling at...

2013-01-09 12:43:25

H. pylori isn't a major cause of death and may protect against stroke and some cancers A new study by NYU School of Medicine researchers reveals that an especially virulent strain of the gut bacterium Helicobacter pylori (H. pylori) isn't implicated in the overall death rate of the U.S. population, and may even protect against stroke and some cancers. The findings, based a nationwide health survey of nearly 10,000 individuals over a period of some 12 years, are published online, January 9,...

How Bacteria Came To Live Inside Insects
2012-11-16 11:50:16

University of Utah Symbiotic microbes' origin discovered after man impales hand on branch Two years ago, a 71-year-old Indiana man impaled his hand on a branch after cutting down a dead crab apple tree, causing an infection that led University of Utah scientists to discover a new bacterium and solve a mystery about how bacteria came to live inside insects. Because the new bacterial strain is easy to grow in the laboratory and is related to Sodalis, a genus of bacteria that lives...

2012-08-24 00:30:22

Rather than trying to kill bacteria outright with drugs, Université de Montréal researchers have discovered a way to disarm bacteria that may allow the body's own defense mechanisms to destroy them. "To understand this strategy one could imagine harmful bacteria being like Darth Vader, and the anti-virulence drug would take away his armor and lightsaber," explained Dr. Christian Baron, the study's lead author and Professor at the Department of Biochemistry. "A naked...

2012-08-23 00:50:44

Acinetobacter baumanni, a pathogenic bacterium that is a poster child of deadly hospital acquired infections, is one tough customer. It resists most antibiotics, is seemingly immune to disinfectants, and can survive desiccation with ease. Indeed, the prevalence with which it infects soldiers wounded in Iraq earned it the nickname "Iraqibacter." In the United States, it is the bane of hospitals, opportunistically infecting patients through open wounds, catheters and breathing tubes. Some...

Deadly E. coli Strain Unscrambled
2012-07-27 13:11:55

Connie K. Ho for redOrbit.com — Your Universe Online “The emergence of novel pathogens poses a major public health threat causing widespread epidemics in susceptible populations.” This is the opening theme proposed by researchers who studied a deadly form of E. coli in hopes that it would prevent another public health outbreak in the future. In particular, a group of researchers from Michigan State University revealed that they were able to decode the strain of deadly...


Latest Virulence Reference Libraries

69_6c18294b6ad5d3bd2a21fde1a9e1ea03
2011-04-14 13:29:59

Acinetobacter baumannii is a species of pathogenic bacteria that is resistant to most antibiotics. Some think the disease is killing tens of thousands of U.S. hospital patients each year due to its resistance to drug treatment. It can cause severe pneumonia and infections of the urinary tract, bloodstream, and other parts of the body. It forms opportunistic infections including reports of attacking wounded soldiers and is sometimes abbreviated as MDRAB. It is the most relevant human...

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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.