Cholera risk in Nairobi

Cholera is an acute diarrheal illness caused by the bacterium Vibrio cholerae, spread through contaminated water or food. It causes severe watery diarrhea and vomiting that can lead to death within hours if untreated.

Nairobi's cholera risk score of 61/100 reflects ongoing vulnerabilities. The disease has appeared repeatedly in Nairobi's informal settlements including Kibera, Mukuru, and Mathare, where overcrowding, limited clean water access, and inadequate sanitation create ideal conditions for outbreaks. The rainy season increases contamination of water sources. Street food vendors in areas like CBD and Eastleigh face hygiene challenges. Cross-border movement from neighboring countries with active cholera also raises risk.

Here are practical steps to protect yourself and your household.

1. Drink only treated water. Boil water for at least one minute or use chlorine purification tablets. Avoid ice cubes from unknown sources and drinks from unverified vendors.

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

3. Eat thoroughly cooked food served hot. Avoid raw vegetables washed in potentially contaminated water, unpeeled fruits from street vendors, and undercooked seafood.

4. Use proper sanitation. Use latrines or toilets. If using shared facilities, carry your own toilet paper and hand sanitizer. Report broken sewage systems to Nairobi City Water and Sewerage Company immediately.

5. Stay informed about current cholera alerts from the Ministry of Health. Vaccination is available and recommended for high-risk areas like informal settlements and during outbreak seasons.

Seek immediate medical attention if you experience sudden watery diarrhea. Oral rehydration salts are critical for survival while waiting for treatment.