Vibrio cholerae

Vibrio cholerae
TEM image
Scientific classification
Kingdom:	Bacteria
Phylum:	Proteobacteria
Class:	Gamma Proteobacteria
Order:	Vibrionales
Family:	Vibrionaceae
Genus:	Vibrio
Species:	V. cholerae
Binomial name
Vibrio cholerae Pacini 1854

Vibrio cholerae (also Kommabacillus) is a gram negative curved-rod shaped bacterium with a polar flagellum that causes cholera in humans.^[1][2] V. cholerae and other species of the genus Vibrio belong to the gamma subdivision of the Proteobacteria.  

There are two major biotypes of V. cholerae, classical and El Tor, and numerous other serogroups.

V. cholerae was first isolated as the cause of cholera by Italian anatomist Filippo Pacini in 1854, but his discovery was not widely known until Robert Koch, working independently thirty years later, publicized the knowledge and the means of fighting the disease.^{[citation needed]}

Genomics and Evolution

The 4.0 Mbp genome of N16961, an O1 serogroup, (in America) El Tor biotype, 7th pandemic strain of V. cholerae, is composed of two circular chromosomes of unequal size that are predicted to encode a total of 3,885 genes^[3]. The genomic sequence of this representative strain has furthered our understanding of the genetic and phenotypic diversity found within the species V. cholerae. Sequence data have been used to identify horizontally acquired sequences, dissect complex regulatory and signaling pathways, and develop computational approaches to predict patterns of gene expression and the presence of metabolic pathway components. Microarrays are being used to study the evolution of the organism. Genomic sequencing of additional strains, subtractive hybridization studies and the introduction of new model systems have also contributed to the identification of novel sequences and pathogenic mechanisms associated with other strains.^[2]

See also

• Cholera

References

External links

• Copepods and cholera in untreated water
• Vibrio cholerae El Tor N16961 Genome Page

v • d • e Cholera Cholera Symptoms - Treatment - Prevention - Susceptibility - Transmission - Diagnosis - History Cholera Bacteria Vibrio cholerae - Strains: El Tor Discovery:1854 Broad Street cholera outbreak - John Snow - Reverend Henry Whitehead Treatment Oral rehydration therapy Antibiotics:Tetracycline - cotrimoxazole - erythromycin - doxycycline - chloramphenicol - furazolidone Fluoroquinolones:norfloxacin Outbreaks Cholera Pandemics: First cholera pandemic - Second cholera pandemic - Third cholera pandemic - Fourth cholera pandemic - Fifth cholera pandemic - Sixth cholera pandemic - Seventh cholera pandemic 1854 Broad Street cholera outbreak - 2007 Central Luzon hog cholera outbreak - 2007 Iraq cholera outbreak - 2008 Congo cholera outbreak - 2008–2009 Zimbabwean cholera outbreak