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The bacteria, E. coli, is commonly found in the human gut. Most strains of E. coli are harmless; however, if the bacterium gets into the bloodstream due to a weakened immune system it can cause ...
For example, some strains of E. coli benefit their hosts by producing vitamin K 2 [8] or by preventing the colonization of the intestine by pathogenic bacteria. These mutually beneficial relationships between E. coli and humans are a type of mutualistic biological relationship—where both the humans and the E. coli are benefitting each other.
The first example of this occurred in 1978 when Herbert Boyer, working at a University of California laboratory, took a version of the human insulin gene and inserted into the bacterium Escherichia coli to produce synthetic "human" insulin. Four years later, it was approved by the U.S. Food and Drug Administration.
One of the first useful applications of recombinant DNA technology was the manipulation of E. coli to produce human insulin. [26] Modified E. coli have been used in vaccine development, bioremediation, and production of immobilised enzymes. [25] E. coli have been used successfully to produce proteins previously thought difficult or impossible ...
Referred to as E. coli O157:H7 or Shiga toxin-producing E. coli (STEC), this strain of E. coli can be particularly dangerous and even life-threatening. The primary sources of STEC outbreaks are ...
E. coli (EIEC) found only in humans Bloody or nonbloody EIEC infection causes a syndrome that is identical to shigellosis, with profuse diarrhea and high fever. Enterohemorrhagic E. coli (EHEC) found in humans, cattle, and goats Bloody or nonbloody The most infamous member of this pathotype is strain O157:H7, which causes bloody diarrhea and no ...
Escherichia coli (E. coli) is bacteria found in the intestines of humans and animals. Some types, like E. coli O157:H7, can produce powerful toxins that can cause severe and potentially deadly ...
Bacilli usually have a rod or cylinder shape. Examples include Listeria, Salmonella typhimurium, Yersinia enterocolitica, and Escherichia coli.. Yersinia enterocolitica colonies growing on XLD agar plates Escherichia coli Color-enhanced scanning electron micrograph showing Salmonella typhimurium (red) invading cultured human cells