What should you know about cholera outbreaks and pandemics?

An outbreak focuses on an increase in cases connected to a particular place, group or source. A pandemic describes disease transmission across broad geographic areas, often involving many communities and health systems. Neither word tells you whether an individual is infected. Cholera spreads when Vibrio cholerae enters the mouth through contaminated food or water, then can cause the intestine to lose water and salts. [Diarrhoea](/symptoms/diarrhoea/) is a key symptom but can have many other causes.

Public-health teams respond by tracing sources, improving water and sanitation, advising communities and arranging care for people who become ill.

Use treated or sealed water for drinking, brushing teeth, cooking and ice. Wash hands with soap after toilet use and before handling food. Cook food thoroughly, avoid raw foods of uncertain safety, and follow current local health instructions. If watery diarrhoea begins, start correctly prepared oral rehydration solution and contact a healthcare service. [Oral Rehydration Therapy](/treatments/acute-and-urgent-care/oral-rehydration-therapy/) helps replace fluid and salts during assessment.

Get urgent care for repeated watery diarrhoea, persistent vomiting, faintness, confusion, unusual drowsiness, very little urine, severe thirst or a dry mouth. Dehydration can become dangerous quickly, whether cases are local or widespread. If drinking cannot replace the loss, clinicians may use [IV Fluid Therapy](/treatments/acute-and-urgent-care/iv-fluid-therapy/) and monitor recovery. Tell the service about possible contaminated water, travel or an outbreak notice.

Ask whether current alerts affect your area, which water sources are safe, whether testing is needed, how to protect household contacts, and where urgent care is available. Explain when symptoms began, what you drank or ate, recent travel, and whether anyone nearby is unwell.