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Latest Virulence Stories

2009-03-11 15:14:00

HOUSTON, March 11 /PRNewswire-USNewswire/ -- Salmonella bacteria research from two recent NASA space missions discovered key elements of the bacteria's disease-causing potential that hold promise for improving ways to fight food-borne infections on Earth. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO ) Salmonella is a leading cause of food poisoning and related illnesses. According to the Centers for Disease Control and Prevention, approximately 40,000 cases of Salmonella...

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2009-03-11 15:15:00

Salmonella bacteria research from two recent NASA space missions discovered key elements of the bacteria's disease-causing potential that hold promise for improving ways to fight food-borne infections on Earth. Salmonella is a leading cause of food poisoning and related illnesses. According to the Centers for Disease Control and Prevention, approximately 40,000 cases of Salmonella infections are reported in the United States each year. "This research opens up new areas for investigations that...

2009-03-11 07:08:50

A newly discovered receptor in a strain of Escherichia coli might help explain why people often get sicker when they're stressed.Researchers at UT Southwestern Medical Center are the first to identify the receptor, known as QseE, which resides in a diarrhea-causing strain of E coli. The receptor senses stress cues from the bacterium's host and helps the pathogen make the host ill. A receptor is a molecule on the surface of a cell that docks with other molecules, often signaling the cell to...

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2009-02-10 11:10:37

Researchers at UT Southwestern Medical Center have identified a protein that may help give Lyme disease its bite. The findings suggest that the bacterial protein, which aids in transporting the metal manganese, is essential for the bacterium that causes Lyme disease to become virulent. "We believe our findings provide a foundation for further defining metal homeostasis in this human pathogen and may lead to new strategies for thwarting Lyme disease," said Dr. Michael Norgard, chairman of...

2009-02-04 12:23:11

U.S. scientists say they have uncovered genetic clues about why some strains of the pathogen that causes Q fever are more virulent than others. Researchers from the National Institute of Allergy and Infectious Diseases, Texas A&M Health Center and the Virginia Bioinformatics Institute at Virginia Tech compared the sequences of four strains of Coxiella burnetii -- an intracellular bacterium that can cause acute and chronic Q fever in humans. Q fever is considered one of the most infectious...

2009-02-02 15:45:49

Scientists from the National Institute of Allergy and Infectious Diseases, Texas A&M Health Center, and the Virginia Bioinformatics Institute at Virginia Tech have uncovered genetic clues about why some strains of the pathogen Coxiella burnetii are more virulent than others.The researchers compared the sequences of four different strains of C. burnetii, an intracellular bacterium that can cause acute and chronic Q fever in humans, to build up a comprehensive picture of the genetic...

2009-01-27 13:31:37

Helicobacter pylori, a Gram-negative, flagellated, microaerophilic bacterium, can selectively colonize in the human stomach. Its infection is widespread throughout the world, and is present in about 50% of the global human population with 80% in developing countries and 20-50% in industrialized countries. Infection of the stomach with H. pylori induces a local immune response with infiltration of the mucosa by macrophages, neutrophils and lymphocytes. Although the innate and adaptive immune...

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2009-01-27 12:08:22

Biodesign Institute at Arizona State University associate research scientist Melha Mellata, a member of professor Roy Curtiss' team, is leading a USDA funded project to develop a vaccine against a leading poultry disease called avian pathogenic E. coli (APEC). APEC is part of a large, diverse group of microbes called extra-intestinal pathogenic E. coli (ExPEC). They cause a number of complex brain, lung and urinary tract diseases in human, animals, and birds. There is also considerable...

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2009-01-23 08:20:00

If you want to know how prehistoric people migrated, follow the "bugs" they carried with them. A consortium of scientists that included two from Baylor College of Medicine and the Michael E. DeBakey Veterans Affairs Medical Center in Houston did just that and in a report in the current issue of the journal Science, they described the two prehistoric migrations that populated the nations of the Pacific Ocean by looking at the travels of two different strains of a particularly nasty bacteria...

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2009-01-19 16:16:07

Scientists at The University of Nottingham are leading a major European study to unravel the genetic code of one of the most lethal strains of hospital acquired infections. The 3 million euro, three-year study will use gene knock-out technology developed in Nottingham to study the function of genes in a "Ëœsuper' strain of the bacteria Clostridium difficile to discover why it causes more severe disease, kills more people, is harder to eradicate and more resistant to antibiotics. It...


Latest Virulence Reference Libraries

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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
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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