Query: NC_013941:2544569 Escherichia coli O55:H7 str. CB9615 chromosome, complete genome Lineage: Escherichia coli; Escherichia; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria General Information: The E. coli O55:H7 strain CB9615 was isolated from an infant with diarrhea in Germany in 2003 and confirmed to belong to the same sequence type (ST11) as the O157:H7 clone by multilocus sequence typing. The O55:H7 and O157:H7 E. coli clones have been shown to be closely related. This organism was named for its discoverer, Theodore Escherich, and is one of the premier model organisms used in the study of bacterial genetics, physiology, and biochemistry. This enteric organism is typically present in the lower intestine of humans, where it is the dominant facultative anaerobe present, but it is only one minor constituent of the complete intestinal microflora. E. coli, is capable of causing various diseases in its host, especially when they acquire virulence traits. E. coli can cause urinary tract infections, neonatal meningitis, and many different intestinal diseases, usually by attaching to the host cell and introducing toxins that disrupt normal cellular processes.
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General Information: This is a Biotype 1 hospital isolate from Taiwan. It contains larger chromosomes and >1000 genes as compared to Vibrio cholerae and contains a conjugative plasmid, pYJ016. There are numerous virulence factors including a cytolysin, protease, capsular polysaccharide as well as iron-uptake systems encoded in the genome. This genus is abundant in marine or freshwater environments such as estuaries, brackish ponds, or coastal areas; regions that provide an important reservoir for the organism in between outbreaks of the disease. Vibrio can affect shellfish, finfish, and other marine animals and a number of species are pathogenic for humans. Organisms of this species are opportunistic pathogens that can attack immunocompromised patients and causes gastroenteritis (inflammation of mucous membranes of stomach and intestine), wound infections, and primary septicemia (spread of the organism through the blood). This organism is the major cause of death from eating raw oysters, especially in people with liver damage. It only affects humans and other primates.