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Shigella


Shigella boydii
Shigella dysenteriae
Shigella flexneri
Shigella sonnei Shigella are Gram-negative, nonmotile, nonsporeforming rod-shaped bacteria. They are pathogens of humans and other primates, causing shigellosis. Depending on age and condition of the host, as few as 10 cells can be enough to cause an infection. The disease is caused when virulent Shigella organisms attach to, and penetrate, epithelial cells of the intestinal mucosa. After invasion, they multiply intracellularly, and spread to contiguous epitheleal cells resulting in tissue destruction. Some strains produce enterotoxin and Shiga toxin (very much like the verotoxin of E. coli O157:H7).


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(Date:4/18/2014)... a twist to the story of how barnyard chickens came ... in the journal Proceedings of the National Academy of ... that lived 200-2300 years ago in Europe, researchers report that ... looked far different from the chickens we know today. , ... with modern domestic chickens -- such as their yellowish skin ...
(Date:4/17/2014)... In the most densely forested and most densely populated ... of human needs, values and practices. Disturbances associated with ... agriculture and development, have set the stage for management ... study reports. , The report Five anthropogenic factors ... in the Northern United States was published ...
Breaking Biology News(10 mins):Counterfeit contraceptives found in South America 2Counterfeit contraceptives found in South America 3Ancient DNA offers clues to how barnyard chickens came to be 2Five anthropogenic factors that will radically alter northern forests in 50 years 2Five anthropogenic factors that will radically alter northern forests in 50 years 3
... S.C., Sept. 17, 2012   Eliza Corporation ("Eliza") , the ... BlueCross BlueShield of South Carolina ("BlueCross") announced ... members increased 45 percent over 2011 rates. In fact, ... exceeded expectations in all areas, and as a result ...
... Research Institute and Sea Lane Biotechnologies have solved the co-crystal ... in a unique way. The antibody recognizes the crucial structure ... though previously this structure had been thought too small for ... hit this precise spot by using just a small part ...
... developed a method that for the first time provides ... and subsequently remove them in a repeatable cycle., Their ... week in the journal Nature Methods , will ... formed proteins in order to create better antibiotics, anti-cancer ...
Cached Biology News:Eliza Corporation and BlueCross BlueShield of South Carolina Drive Awareness and Healthier Behavior to Increase Colorectal Cancer Screenings by 45 Percent 2Eliza Corporation and BlueCross BlueShield of South Carolina Drive Awareness and Healthier Behavior to Increase Colorectal Cancer Screenings by 45 Percent 3Eliza Corporation and BlueCross BlueShield of South Carolina Drive Awareness and Healthier Behavior to Increase Colorectal Cancer Screenings by 45 Percent 4Flu antibody’s 'one-handed grab' may boost effort toward universal vaccine, new therapies 2Flu antibody’s 'one-handed grab' may boost effort toward universal vaccine, new therapies 3Chemists develop reversible method of tagging proteins 2Chemists develop reversible method of tagging proteins 3
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