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Latest Pathogen Stories

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2010-09-23 09:31:48

The model is based on transplanting human immune stem cells from umbilical blood into mice that are susceptible to infection Better treatments and prevention for typhoid fever may emerge from a laboratory model that has just been developed for the disease. The model is based on transplanting human immune stem cells from umbilical cord blood into mice that are susceptible to infections. The transplanted cells live alongside the mouse's own immune system. Although mice are normally resistant to...

2010-09-11 01:53:21

Scientists find low levels of bacteria in fields sprayed with swine manure That swine manure sprayed on to fields adds valuable nutrients to the soil is well known. But what is not known is whether all that manure is bringing harmful bacteria with it. A new study looks at the levels of nutrients and bacteria in soils of fields that have been sprayed with manure for fifteen years or more. The research team, composed of scientists from the USDA-ARS Crop Science Research Laboratory at...

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2010-06-22 12:04:23

The discovery could help to design new strategies to increase their sensitivity to antibiotics A study led by researchers from Universitat Autònoma de Barcelona (UAB) describes one of the mechanisms in which pathogenic bacteria populations control the way they spread over the surface of the organs they infect and stop when they detect the presence of an antibiotic, only to resume again when the effect wears off. The star of this process is the RecA protein, which...

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2010-06-22 07:45:50

Campylobacter jejuni causes more diarrhea than Salmonella Sampling of pigeons captured on the streets of Madrid has revealed the bacterial pathogens they carry. Researchers writing in BioMed Central's open access journal Acta Veterinaria Scandinavica found two bugs that were highly prevalent in the bird population, Chlamydophila psittaci and Campylobacter jejuni, both of which cause illness in humans. Fernando Esper³n from the Animal Health Research Center, Madrid, Spain, worked with a...

2010-06-15 00:52:29

Prion diseases are lethal neurodegenerative disorders that include Creutzfeldt-Jakob disease (CJD) in humans and bovine spongiform encephalopathy (BSE; commonly known as mad cow disease) in cows. A team of researchers, led by Adriano Aguzzi and Christina Sigurdson, at UniversitätsSpital Zrich, Switzerland, has generated data in mice that provides greater understanding of the factors that determine how easy it is for prion diseases to be transmitted to a new host species. This information...

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2010-06-11 07:29:41

If you live in a section of the country where gypsy moths are a relatively new menace, have no fear, help is not far behind. Cornell University entomologist Ann Hajek told a national conference earlier this month that when the gypsy moth "“ whose caterpillars have defoliated entire forests "“ started spreading westward more than 100 years ago from New England to Wisconsin, its fungal and viral pathogens followed close behind. "We were pretty surprised," Hajek says. "No one knew...

2010-06-07 13:59:52

Study argues for greater monitoring and management of pathogens that threaten crops in Sub-Saharan Africa The devastating consequences of emerging infectious diseases on crops in developing countries and their economic and social impacts are often underestimated, according to a new study by Maurizio Vurro and his colleagues from the Institute of the Science of Food Production in Italy. The authors call for local governments and international communities to establish better mechanisms for...

2010-06-01 19:18:20

Researchers at the Public University of Navarra, the Polytechnic University of Madrid (CBGP), the University of Malaga, the University of Wisconsin and the Valencian Institute of Agricultural Research have managed to sequence the genome of the bacteria responsible for tuberculosis in the olive tree. The study, included in the June issue of Environmental Microbiology, represents the first sequencing of the genome of a pathogenic bacteria undertaken in Spain, being the first genome known...

2010-05-28 13:07:03

Finding may offer future alternative to antibiotics A team of scientists from government, academia and private industry has developed a novel treatment that protects mice from infection with the bacterium that causes tularemia, a highly infectious disease of rodents, sometimes transmitted to people, and also known as rabbit fever. In additional experiments with human immune cells, the treatment also demonstrated protection against three other types of disease-causing bacteria that, like the...

2010-05-24 07:15:09

New finding may change the direction of vaccine research Scientists at NYU Langone Medical Center have discovered that the strategy of "immune evasion" common to many viruses, bacteria and parasites, is uncommon to M. tuberculosis where the antigens remain strikingly unchanged and homogenous. The study published in Nature Genetics on May 23, 2010, suggests that M. tuberculosis antigens do not mutate because they hope to be recognized by the body's immune system"“ perhaps because the...


Word of the Day
kenspeckle
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'