What should you know about cholera origin?

The bacterium reaches the intestine when contaminated water or food is swallowed. It can release a toxin that makes the intestine lose large amounts of water and salts into the bowel. This produces sudden, watery diarrhoea, sometimes with vomiting. Cholera is associated with unsafe sanitation and limited access to treated water; ordinary contact with an infected person is not the usual route. A person may carry the bacterium without obvious illness and still contribute to contamination if hand hygiene and sanitation are poor.

The main danger is dehydration rather than the infection's name or geographic origin. Read about [Diarrhoea](/symptoms/diarrhoea/) when loose stools are part of the picture.

Use safe drinking water, wash hands with soap after using the toilet and before preparing food, and eat food that has been cooked thoroughly and served hot. Avoid ice, raw foods and drinks made with water whose safety is uncertain. If diarrhoea begins, start oral rehydration solution promptly according to its instructions and seek medical advice. [Oral Rehydration Therapy](/treatments/acute-and-urgent-care/oral-rehydration-therapy/) replaces water and salts while you arrange care.

Seek urgent medical care for frequent watery diarrhoea, repeated vomiting, marked thirst, a very dry mouth, little or no urine, dizziness, unusual sleepiness or confusion. Children, older adults and people who are pregnant or medically vulnerable can become dehydrated quickly. Severe dehydration may need [IV Fluid Therapy](/treatments/acute-and-urgent-care/iv-fluid-therapy/) in a clinic or hospital. Do not wait for laboratory confirmation if fluid loss is substantial.

Ask whether your symptoms fit cholera or another cause of acute diarrhoea, whether a stool test is needed, how much oral rehydration to take, and which warning signs should bring you back immediately. Mention recent travel, untreated water, shared meals, household illness and any medicines you take.