BMJ  2005;331 (3 September), doi:10.1136/bmj.331.7515.0-a

Flocculant-disinfection gives best results in Kenya

Flocculant-disinfection seems to be the best solution to infected drinking water in areas of Kenya where drinking water is obtained from ponds, rivers, and springs that are regularly contaminated by human and animal faeces. In a three arm cluster randomised controlled trial that included 6650 people and 605 family compounds in Kenya, Crump and colleagues (p 478) found that, compared with the usual practice of water collection, using flocculant-disinfectant reduced the prevalence of diarrhoea in children under 2 years by 25% and sodium hypochlorite reduced it by 17%. Flocculant-disinfectant also reduced water turbidity significantly when compared with sodium hypochlorite and control.

Credit: CHARLOTTE THEGE/STILL PICTURES

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Relevant Article

Household based treatment of drinking water with flocculant-disinfectant for preventing diarrhoea in areas with turbid source water in rural western Kenya: cluster randomised controlled trial

John A Crump, Peter O Otieno, Laurence Slutsker, Bruce H Keswick, Daniel H Rosen, R Michael Hoekstra, John M Vulule, and Stephen P Luby
BMJ 2005 331: 478. [Abstract] [Full Text] [PDF]