Why cholera continues to threaten many African countries.

The article discusses the persistence of cholera in Africa due to worsening sanitation, poor and unreliable water supplies, and worsening socio-economic conditions, along with an upsurge in population migration to urban areas. It emphasizes a concerted effort for all endemic countries in sub-Saharan Africa to have joint measures to tackle cross-border transmission and the persistence of cholera outbreaks.