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Latest Virulence Stories

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...

2012-05-11 10:32:14

Native bacteria help fend off invaders, study finds — suggesting ways to prevent or treat the effects of some dangerous forms of E. coli From tiny villages in developing nations to suburban kitchens in the United States, dangerous strains of E. coli bacteria sicken millions of people each year — and kill untold numbers of children. Now, new research from the University of Michigan Health System gives scientists a better understanding of what is going on in the...

History Is Key Factor In Plant Disease Virulence
2012-04-20 03:30:50

Where disease-causing microbes have been makes a difference The virulence of plant-borne diseases depends on not just the particular strain of a pathogen, but on where the pathogen has been before landing in its host, according to new research results. Scientists from the University of California System and the U.S. Department of Agriculture's Agricultural Research Service (USDA ARS) published the results April 18 in the journal PLoS ONE. The study demonstrates that the pattern of...

UCSB Researchers Find A Way To Detect Stealthy, 'Hypervirulent' Salmonella Strains
2012-04-13 08:16:43

(Santa Barbara, Calif.) —— A recent discovery of "hypervirulent" Salmonella bacteria has given UC Santa Barbara researchers Michael Mahan and Douglas Heithoff a means to potentially prevent food poisoning outbreaks from these particularly powerful strains. Their findings, in a paper titled "Intraspecies Variation in the Emergence of Hyperinfectious Bacterial Strains in Nature," have been published in the journal PLoS Pathogens. Salmonella is the most common cause of infection,...

2012-04-05 14:04:49

New treatments that combat the growing problem of antibiotic resistance by disarming rather than killing bacteria may be on the horizon, according to a new study. Published in Nature Structure and Molecular Biology, research led by Monash University showed a protein complex called the Translocation and Assembly Module (TAM), formed a type of molecular pump in bacteria. The TAM allows bacteria to shuttle key disease-causing molecules from inside the bacterial cell where they are made, to...

2012-04-02 11:08:30

Less resistance can sometimes be better than more--at least in a freshwater lake When battling a deadly parasite epidemic, less resistance can sometimes be better than more, a new study suggests. A freshwater zooplankton species known as Daphnia dentifera endures periodic epidemics of a virulent yeast parasite that can infect more than 60 percent of the Daphnia population. During these epidemics, the Daphnia population evolves quickly, balancing infection resistance and reproduction....

2012-03-29 23:15:36

When battling an epidemic of a deadly parasite, less resistance can sometimes be better than more, a new study suggests. A freshwater zooplankton species known as Daphnia dentifera endures periodic epidemics of a virulent yeast parasite that can infect more than 60 percent of the Daphnia population. During these epidemics, the Daphnia population evolves quickly, balancing infection resistance and reproduction. A new study led by Georgia Institute of Technology researchers reveals that...

2012-03-23 13:12:45

Researchers compare the genome of 2 parasites to explain differences in host range and transmission strategy Researchers have found the subtle genetic differences that make one parasite far more virulent than its close relative. They looked at the evolution of these parasites and found that although their genome architecture still remains similar, the two split from their common ancestor 28 million years ago, approximately four times longer than the human-gorilla split. Toxoplasma is...

2012-03-08 15:01:28

Scientists from the Schepens Eye Research Institute, a subsidiary of Mass. Eye and Ear and affiliate of Harvard Medical School, have found for the first time that a bacterial pathogen can literally mow down protective molecules, known as mucins, on mucus membranes to enter and infect a part of the body. Their landmark study, published in the March 7, 2012 PLoS ONE, describes how they discovered that an "epidemic" strain of the bacterium Streptococcus pneumoniae, which causes conjunctivitis,...


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
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.