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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
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 .
Escherichia coli have an incubation period of 12–72 hours with the optimal growth temperature being 37 °C. Unlike the general coliform group, E. coli are almost exclusively of fecal origin and their presence is thus an effective confirmation of fecal contamination. Most strains of E. coli are harmless, but some can cause serious illness in ...
E. coli bacteria often carry multiple drug resistance plasmids, and under stress, readily transfer those plasmids to other species. Mixing of species in the intestines allows E. coli to accept and transfer plasmids from and to other bacteria. Thus, E. coli and the other enterobacteria are important reservoirs of transferable antibiotic ...
As of Dec. 3, the CDC said 104 people have fallen ill and 34 were hospitalized due to the outbreak caused by the E. coli O157:H7 strain that can cause "very serious disease." Onions were supplied ...
In September 2006, there was an outbreak of foodborne illness caused by Escherichia coli (E. coli) bacteria found in prepackaged spinach in 26 U.S. states. [4] [2] The initial reports of the outbreak came from the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC). [citation needed]
The CDC collects and publishes health information for travelers in a comprehensive book, CDC Health Information for International Travel, which is commonly known as the "yellow book." [ 79 ] The book is available online and in print as a new edition every other year and includes current travel health guidelines, vaccine recommendations, and ...
E. coli colonies containing the fluorescent pGLO plasmid. Escherichia coli (/ ˌ ɛ ʃ ɪ ˈ r ɪ k i ə ˈ k oʊ l aɪ /; commonly abbreviated E. coli) is a Gram-negative gammaproteobacterium commonly found in the lower intestine of warm-blooded organisms (endotherms). The descendants of two isolates, K-12 and B strain, are used routinely in ...