Cholera risk in Can Tho

Cholera Risk Prevention Guide for Can Tho

What Cholera Is

Cholera is a bacterial infection caused by Vibrio cholerae that leads to severe watery diarrhea and rapid dehydration. Without treatment, it can be life-threatening within hours. It spreads through contaminated water and food, making it a serious concern in areas with limited sanitation infrastructure.

Why Can Tho Faces Elevated Risk

Can Tho sits at the heart of the Mekong Delta, where the convergence of several factors pushes the risk score to 67 out of 100. The city's extensive river and canal network, while vital for livelihood, creates natural pathways for bacterial spread. Seasonal flooding, especially during the rainy season from May to November, overwhelms drainage systems and mixes sewage with floodwater. Open-air food markets along the riverbanks serve street food prepared with untreated water. Many households still rely on direct river water for daily use without proper filtration. The warm tropical climate allows V. cholerae to thrive year-round, and the high population density in floating market areas accelerates transmission. Limited access to clean sanitation in some riverside communities compounds the problem.

Actionable Prevention Steps

1. Boil all drinking water for at least one minute. If boiling is not possible, use chlorine tablets or certified water filters. Never drink directly from the river or canals, even if it looks clean.

2. Cook food thoroughly and eat it while hot. Avoid raw or undercooked seafood, especially shellfish from the river. Wash fruits and vegetables with treated water only.

3. Wash hands with soap and clean water before eating and after using the toilet. Carry hand sanitizer when soap is unavailable.

4. Dispose of human waste properly. Never defecate near waterways. Use designated latrines or toilets.

5. If you develop sudden watery diarrhea, seek medical care immediately. Begin oral rehydration with a solution of clean water, salt, and sugar while heading to a clinic or hospital. Do not wait.