PointofUse Water Treatment

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Point-of-Use Water TreatmentLifeStraw
Christian Connections for International Health
(CCIH) 24 May 2008
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Attribution

• Tom Clasen, London School of Hygiene and Tropical
  Medicine (LSHTM), presentation Washington DC,
  February 2008
• University of North Carolina (M. Sobsey, J.
  Brown)
• LSHTM (S. Cairncross, V. Curtis, I. Roberts, T.
  Rabie, L. Smith, W. Schmidt, S. Thomas)
• WHO

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Leading Causes of Deaths from Infectious
Diseases 2004 World Health Report
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Childhood Mortality by Cause
Black RE, Morris SS Bryce J (2003). Where and
why are 10 million children dying every year?
Lancet 3612226-34.
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1990s Reduction in Diarrhea from Improvements in
Water Quality
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Interventions at Source
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Effectiveness Data Cochrane Review
Clasen T, Roberts I, Rabie T, Schmidt W,
Cairncross S. Interventions to improve water
quality for preventing diarrhoea (A Cochrane
Review). In The Cochrane Library, Issue 3, 2006.
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Summary of EffectivenessUnder 5s
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Interventions at the Household
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Continuing Challenges in Point-of-Use

• No successful large-scale models
• Little evidence that purely commercial
  strategies reach the most vulnerable populations
• Questions about whether any HWTS product or
  implementation strategy has achieved consistent,
  correct and sustained use among the most
  vulnerable populations
• Little success in attracting significant donor
  funding (compared, e.g., to HIV/AIDS, TB, malaria)

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Scaling Up 2005-2007
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100 Coverage of 1.1B without access to improved
water supplies
Coverage Gap
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Different Needs / Different Drivers
Development of Commercial Market
Subsidy / Time-limited Intervention
Equity
TIME
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Different Needs / Different Drivers
1 2 3
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SOUTH SUDAN CONGO (DRC) PNG
ZAMBIA CAMBODIA NIGERIA
GHANA SENEGAL INDIA
CHINA MEXICO BRAZIL
TIME
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LifeStraw Family

• Highly effective against all categories of
  microbial pathogens
• High output (150ml/min)
• High capacity (gt18,000 L)
• Operates in high and variable turbidity (15 NTU)
• Low cost
• Easy to deploy, learn, use, maintain
• Portable, robust
• Improves water aesthetics
• No chemicals
• No replacement parts
• Protects against recontamination

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Lab Testing
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LifeStraw Family Congo
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