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Escherichia coli O157:H7 is a serotype of the bacterial species Escherichia coli and is one of the Shiga-like toxin–producing types of E. coli. It is a cause of disease , typically foodborne illness , through consumption of contaminated and raw food, including raw milk and undercooked ground beef .
A study published in the journal Science in August 2007 found the rate of adaptative mutations in E. coli is "on the order of 10 −5 per genome per generation, which is 1,000 times as high as previous estimates," a finding which may have significance for the study and management of bacterial antibiotic resistance.
1993 Jack in the Box E. coli outbreak: E. coli O157:H7: undercooked hamburgers: Jack in the Box >700 [19] 4 [19] First deadly foodborne E. coli O157:H7 outbreak. 2003: 2003 United States hepatitis A outbreak: hepatitis A virus: green onions: 555 [22] 3 [22] Largest foodborne hepatitis outbreak. 2006: 2006 North American E. coli O157:H7 outbreak ...
The CDC eventually concluded this was an example of O157:H7, its code for a strain of E. coli that is noteworthy for seeming to have genes from a different but related species, Shigella, producing an unusual toxin, though not one especially lethal to human beings. A 2022 study estimated that the total societal loss from the romaine lettuce ...
E. coli is a gram-negative, facultative anaerobe, nonsporulating coliform bacterium. [18] Cells are typically rod-shaped, and are about 2.0 μm long and 0.25–1.0 μm in diameter, with a cell volume of 0.6–0.7 μm 3. [19] [20] [21] E. coli stains gram-negative because its cell wall is composed of a thin peptidoglycan layer and an outer membrane.
A CDC infographic on how antibiotic-resistant bacteria have the potential to spread from farm animals. The use of antibiotics in the husbandry of livestock includes treatment when ill (therapeutic), treatment of a group of animals when at least one is diagnosed with clinical infection (metaphylaxis [1]), and preventative treatment (prophylaxis).
The threat of so-called “mad cow disease” has all but faded from the collective memory, after its appearance in U.K. cattle in 1986. Human deaths from the scourge, caused by eating ...
2011 – German E. coli O104:H4 outbreak was caused by EHEC O104:H4 contaminated fenugreek seeds imported from Egypt in 2009 and 2010, from which sprouts were grown in Germany. 2011 – Vinegar from China contaminated with ethylene glycol when stored in tanks that previously contained antifreeze, led to 11 deaths and an estimated 120 cases of ...