What should you know about cholera pandemic?

A large outbreak can affect several communities or countries, but the word pandemic describes spread, not how severe every person's illness will be. Cholera bacteria are usually transmitted through contaminated water or food. Many infected people have mild or no symptoms, while others develop sudden watery diarrhoea and vomiting. The immediate medical concern is dehydration, because fluid and salts can be lost quickly.

An outbreak does not mean that every episode of diarrhoea is cholera. Local health authorities may issue advice about water, food handling and testing. Exposure information helps a clinician judge whether cholera should be considered.

Use treated or sealed drinking water, cook food thoroughly, keep raw and cooked foods separate, and wash hands with soap after toileting and before eating or preparing food. If diarrhoea begins, take frequent sips of correctly prepared oral rehydration solution and arrange medical advice. Continue feeding or breastfeeding if tolerated. Do not share towels or prepare food for others while ill.

[Oral Rehydration Therapy](/treatments/acute-and-urgent-care/oral-rehydration-therapy/) can replace lost water and salts. People with severe dehydration may need [IV Fluid Therapy](/treatments/acute-and-urgent-care/iv-fluid-therapy/).

Get urgent help for persistent watery diarrhoea, repeated vomiting, faintness, confusion, extreme weakness, little urine, a very dry mouth or inability to drink. Do not wait for public health confirmation if dehydration signs are developing. Infants, older adults, pregnant people and those with chronic disease deserve a low threshold for assessment. Read more about [Diarrhoea](/symptoms/diarrhoea/).

Ask whether local exposure makes cholera plausible, which rehydration product to use, how to protect household members, whether testing is advised, and where to go if symptoms worsen. Share the start time of diarrhoea, vomiting, urine changes, travel or outbreak exposure, and fluids already taken.