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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:7/31/2014)... While previous studies have shown that marine noise can ... scientists from the Universities of Bristol and Exeter and ... France have demonstrated that boat noise stops embryonic development ... hares, (specifically the sea slug Stylocheilus striatus ... to swim away and later feed on toxic alga ...
(Date:7/30/2014)... New York University is paving the way for ... civilians and military troops exposed to poisonous chemicalsparticularly ... An article in the current issue of the ... detoxifying organophosphates, which are compounds commonly used in ... developed by NYU School of Engineering Associate Professor ...
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... April 19, 2010 Scientists from The Scripps Research ... how certain genetic mutations lead to Type 1 diabetes. This ... 1 diabetes and other autoimmune diseases. The study was ... of Clinical Investigation on April 19, 2010, and will ...
... of the Carnegie Institution,s Department of Global Ecology, is ... sciences, the humanities and the arts, business, public affairs, ... the new class of members of the American Academy ... world,s most prestigious honorary societies, cited Field for his ...
... BUFFALO, N.Y. -- A University at Buffalo volcanologist, an expert ... how the jet stream -- the area in the atmosphere ... be the area most likely to be impacted by plumes ... Bursik, PhD, one of the foremost experts on volcanic plumes ...
Cached Biology News:Scripps Research scientists reveal how genetic mutations may cause type 1 diabetes 2Scripps Research scientists reveal how genetic mutations may cause type 1 diabetes 3Carnegie's Chris Field elected to American Academy of Arts & Sciences 2Volcanic ash research shows how plumes end up in the jet stream 2
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