Cholera risk in Antananarivo

CHOLERA PREVENTION GUIDE FOR ANTANARIVO

Cholera is a bacterial infection spread through contaminated water and food. It causes severe diarrhea and dehydration, which can become fatal without rapid treatment. In Antananarivo, the risk score of 61 out of 100 reflects ongoing transmission driven by specific local conditions. The city's overcrowded neighborhoods, especially in the lower districts near the Ikopa River, face chronic water supply problems. Open drainage channels, seasonal flooding during the rainy months from November through March, and limited sanitation infrastructure in informal settlements create ideal conditions for cholera to spread. Street food vendors and open market stalls selling raw or undercooked seafood and unwashed produce add further risk.

Five steps to protect yourself:

First, treat all drinking water. Boil it for at least one full minute, or use chlorine tablets or certified water purification methods. Avoid ice from unknown sources and drink only bottled or treated water when outside your home.

Second, wash your hands thoroughly with soap and clean water before eating, after using the toilet, and after handling any waste. If soap is unavailable, use ashes or sand as a scrubbing agent when clean water follows.

Third, eat only thoroughly cooked food served hot. Avoid raw vegetables, unpeeled fruits, and food from street vendors where hygiene conditions are uncertain. Peel fruits yourself with clean hands.

Fourth, maintain clean surroundings. Dispose of waste properly and keep living areas free of standing water. Cover stored water containers and use latrines rather than open defecation.

Fifth, recognize early signs such as sudden watery diarrhea or vomiting. Seek immediate medical care and begin oral rehydration with clean water mixed with salt and sugar while traveling to a health facility.