Prevalence, diversity of diarrhoeagenic Escherichia coli and associated risk factors in well water  in Ile-Ife, Southwestern Nigeria.

The presence of DEC in well water highlights the risk to human health associated with the use of untreated water. There was a high degree of genetic diversity among the isolates implying multiple sources of contamination. There is a need for periodic sanitation and inspection of wells for cracks to prevent seepages and possible outbreaks of waterborne diseases.