Query: NC_008800:4013298 Yersinia enterocolitica subsp. enterocolitica 8081 chromosome,
Lineage: Yersinia enterocolitica; Yersinia; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria
General Information: This isolate (strain 8081; NCTC 13174) is a mouse-lethal serotype of Yersinia enterocolitica that contains a high pathogenicity island (HPI) that encodes an iron uptake system (yersiniabactin) and a type II secretion system. Causes gastroenteritis. Specific virulence factors are encoded within pathogenicity islands (PAIs) that are required for the invasive phenotype associated with Yersinia infections. One key virulence plasmid contained by the three human-specific pathogens is pCD1/pYv, which encodes a type III secretion system for the delivery of virulence proteins that contribute to internalization into the host cell. This species is a food and waterborn pathogen that causes gastroenteritis (inflammation of the mucous membranes of the stomach and intestine) and is able to proliferate at temperatures as low as 4 degrees C.
Subject: NC_002505:514732 Vibrio cholerae O1 biovar eltor str. N16961 chromosome I, complete
Lineage: Vibrio cholerae; Vibrio; Vibrionaceae; Vibrionales; Proteobacteria; Bacteria
General Information: This is an epidemic serogroup of Vibrio cholerae isolated in 1971 in Bangladesh and is distinguished from the classical biotype due to hemolysin production. 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. Vibrio cholerae can colonize the mucosal surface of the small intestines of humans where it will cause cholera, a severe and sudden onset diarrheal disease. One famous outbreak was traced to a contaminated well in London in 1854 by John Snow, and epidemics, which can occur with extreme rapidity, are often associated with conditions of poor sanitation. The disease has a high lethality if left untreated, and millions have died over the centuries. There have been seven major pandemics between 1817 and today. Six were attributed to the classical biotype, while the 7th, which started in 1961, is associated with the El Tor biotype.