Causes and Zambia Cholera Vaccines Cholera is caused by the bacterium Vibrio cholerae. The bacteria is usually spread through contaminated water or food. In Zambia, access to clean drinking water and proper sanitation is still lacking in many rural areas, placing citizens at risk. Heavy rainfall during the rainy season washes human waste from pit latrines into water sources. Fisher... https://livepositively.com/zambia-cholera-vaccines-zambia-cholera-outbreak-enters-critical-phase-with-over-2-000-cases-reported/