A person with severe dehydration due to cholera, causing sunken eyes and wrinkled hands and skin.
Rod-shaped Bacillus subtilis
Typical cholera diarrhea that looks like "rice water"
Phylogenetic tree of Bacteria, Archaea and Eucarya. The vertical line at bottom represents the last universal common ancestor.
Scanning electron microscope image of Vibrio cholerae
Bacteria display many cell morphologies and arrangements
Vibrio cholerae, the bacterium that causes cholera
The range of sizes shown by prokaryotes (Bacteria), relative to those of other organisms and biomolecules.
The role of biofilm in the intestinal colonization of Vibrio cholerae
Structure and contents of a typical Gram-positive bacterial cell (seen by the fact that only one cell membrane is present).
Preventive inoculation against cholera in 1966
An electron micrograph of Halothiobacillus neapolitanus cells with carboxysomes inside, with arrows highlighting visible carboxysomes. Scale bars indicate 100 nm.
Euvichol-plus oral vaccine for cholera
Helicobacter pylori electron micrograph, showing multiple flagella on the cell surface
Bacillus anthracis (stained purple) growing in cerebrospinal fluid
Cholera patient being treated by oral rehydration therapy in 1992
Many bacteria reproduce through binary fission, which is compared to mitosis and meiosis in this image.
Map of the 2008–2009 cholera outbreak in sub-Saharan Africa showing the statistics as of 12 February 2009
A culture of ''Salmonella
Robert Koch (third from the right) on a cholera research expedition in Egypt in 1884, one year after he identified V. cholerae
A colony of Escherichia coli
How to avoid the cholera leaflet; Aberystwyth; August 1849
Helium ion microscopy image showing T4 phage infecting E. coli. Some of the attached phage have contracted tails indicating that they have injected their DNA into the host. The bacterial cells are ~ 0.5 µm wide.
Prof. Sambhu Nath De, who discovered the cholera toxin and successfully demonstrated the transmission of cholera pathogen by bacterial enteric toxin
Transmission electron micrograph of Desulfovibrio vulgaris showing a single flagellum at one end of the cell. Scale bar is 0.5 micrometers long.
Dumping of sewage or fecal sludge from a UN camp into a lake in the surroundings of Port-au-Prince is thought to have contributed to the spread of cholera after the Haiti earthquake in 2010, killing thousands.
The different arrangements of bacterial flagella: A-Monotrichous; B-Lophotrichous; C-Amphitrichous; D-Peritrichous
Example of a urine-diverting dry toilet in a cholera-affected area in Haiti. This type of toilet stops transmission of disease via the fecal-oral route due to water pollution.
Streptococcus mutans visualised with a Gram stain.
Cholera hospital in Dhaka, showing typical "cholera beds".
Phylogenetic tree showing the diversity of bacteria, compared to other organisms. Here bacteria are represented by three main supergroups: the CPR ultramicrobacterias, Terrabacteria and Gracilicutes according to recent genomic analyzes (2019).
Drawing of Death bringing cholera, in Le Petit Journal (1912).
Overview of bacterial infections and main species involved.
Emperor Pedro II of Brazil visiting people with cholera in 1855.
Colour-enhanced scanning electron micrograph showing Salmonella typhimurium (red) invading cultured human cells
Hand bill from the New York City Board of Health, 1832—the outdated public health advice demonstrates the lack of understanding of the disease and its actual causative factors.
In bacterial vaginosis, beneficial bacteria in the vagina (top) are displaced by pathogens (bottom). Gram stain.
Antonie van Leeuwenhoek, the first microbiologist and the first person to observe bacteria using a microscope.

Cholera is an infection of the small intestine by some strains of the bacterium Vibrio cholerae.

- Cholera

However, several species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy, tuberculosis, tetanus and bubonic plague.

- Bacteria

2 related topics


Structural model at atomic resolution of bacteriophage T4


Structural model at atomic resolution of bacteriophage T4
The structure of a typical myovirus bacteriophage
Anatomy and infection cycle of phage T4.
Bacteriophage P22, a member of the Podoviridae by morphology due to its short, non-contractile tail
Bacteriophage T2, a member of the Myoviridae due to its contractile tail
Félix d'Herelle
George Eliava
Diagram of the DNA injection process
In this electron micrograph of bacteriophages attached to a bacterial cell, the viruses are the size and shape of coliphage T1
Schematic view of the 44 kb T7 phage genome. Each box is a gene. Numbers indicate genes (or rather open reading frames).

A bacteriophage, also known informally as a phage , is a virus that infects and replicates within bacteria and archaea.

Examples are the conversion of harmless strains of Corynebacterium diphtheriae or Vibrio cholerae by bacteriophages, to highly virulent ones that cause diphtheria or cholera, respectively.

An electron micrograph of rotavirus, the cause of nearly 40% of hospitalizations from diarrhea in children under five


Condition of having at least three loose, liquid, or watery bowel movements each day.

Condition of having at least three loose, liquid, or watery bowel movements each day.

An electron micrograph of rotavirus, the cause of nearly 40% of hospitalizations from diarrhea in children under five
Bristol stool chart
Diagram of the human gastrointestinal tract
Poverty often leads to unhygienic living conditions, as in this community in the Indian Himalayas. Such conditions promote contraction of diarrheal diseases, as a result of poor sanitation and hygiene.
A person consuming oral rehydration solution
Deaths due to diarrhoeal diseases per million persons in 2012

The most common cause is an infection of the intestines due to either a virus, bacterium, or parasite—a condition also known as gastroenteritis.

The short duration watery diarrhea may be due to cholera, although this is rare in the developed world.