International Network on Household Water
Treatment and Safe Storagefocusing on the needs of the most vulnerable
HWTS/WSP Workshop of the International Network on Household
Water Treatment and Safe Storage
Vientiane, Lao PDR
November 2014
Overview
• Basis for household water treatment and safe storage
(HWTS)
• WHO/UNICEF International Network on HWTS
• Important HWTS initiatives
• National policy development
• International Scheme to Evaluate HWT
• Linking with water safety plans
• Monitoring and evaluation of HWTS
• Integrated interventions
Basis for Household Water Treatment and
Safe Storage
• Important interim solution for:
– 780 million without access to improved drinking-water
– Billions without access to safe and reliable drinking-water
• Proven primary health intervention:
– Reduces diarrhoea 32-42%( Clasen, et al. 2006;Waddington,et al. 2009)
– Included in UNICEF/WHO 7 point strategy for diarrhoea control
(2009); WHO/UNICEF Global Action Plan to Prevent Childhood
Pneumonia and Diarrhoea (2013)
MoH Kenya, John Kariuki
• Optimizing benefits requires optimal choice, consistent
and correct use by at-risk populations:
– WHO recommendations on HWT performance (2011)
– WHO/UNICEF Toolkit for Monitoring and Evaluating HWTS (2012)
International Network on Household Water
Treatment and Safe Storage
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Co-hosted by WHO and UNICEF, Communications by
UNC Water Institute
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Over 140 participating organizations
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Phase II Strategy (2011-2016) aims to:
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Support national policy and framework development
Strengthen evidence base
Evaluate and disseminate best practices
Realize tangible results in scaling-up
Global Network targets address key areas of work
HWTS Global Strategy 2011-2016
- Mission Statement To contribute to a significant reduction in waterborne and water-related vector-borne diseases,
especially among vulnerable populations, by
promoting household water treatment and safe
storage as a key component of community-targeted
environmental health programmes.
Facilitating National Policy Development
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Regional workshops and development of national action
plans
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Focus on inclusion of HWTS
in nat'l health policies
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Child and maternal health
Nutrition
HIV/AIDS and TB
Emergencies
Inclusion of HWTS in National
Policies/Strategies
Number of countries
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East Africa 2011: Ethiopia, Kenya, Rwanda, Tanzania and Uganda
Southern Africa 2012: Malawi, Mozambique and Zambia
West Africa 2013: Gambia, Ghana, Liberia and Sierra Leone
Asia 2013: Bhutan, Cambodia, India
30
25
20
15
10
5
0
Water
Health
Emergency
Sanitation
Sector Policies
Source: WHO, 2012. Status of national policies on household
water treatment and safe storage in select countries. Geneva,
Switzerland.
Other
Why Integration?-Greater health gains
• Antenatal Care in Malawi (Sheth, AN, et al., 2010; Wood, et al.,
2011)
– Marked increase in antenatal visits, delivery in health
facilities, and postnatal checks
– 30-fold increase in household water treatment 3 years later
• Zambia HIV+ mothers (Peletz, et al.; 2012; Peletz, et al.; 2013)
– Use of filters 96% among HIV+ mothers
– Significant reductions in diarrhoea in young children and the
household
– Long-term high use sustained even after intervention ceased
• Kenya multi-disease campaign (Walson, et al.; 2013)
– Use higher in intervention vs control: 99.5% vs 76% (any
method); 93% vs 0.4 % (filter)
– Significant reductions in diarrhoea and HIV mortality
WHO/ R Granich
International Scheme to Evaluate HWT
• Promote and coordinate independent and
consistent testing and evaluation of
household water treatment products
based on WHO performance criteria; and
• Support national governments building
technical capacity of research institutions
and strengthening national regulation of
HWT.
• Round I of evaluations currently underway
HWTS and Water Safety Plans
• Water easily becomes contaminated during
collection and storage in the home (Wright et al.,
2004) AND piped supplies in developing
countries are often not reliable or safe
(Prüss-Ustün et al., 2014)
• HWTS provides an important mitigation
measure to reduce risks associated with
drinking-water in the home/school/care facility
• Many countries (Afghanistan, Democratic
Republic of the Congo, Ethiopia, Kenya, Lao
PDR, etc) working to holistically address water
quality with WSPs and HWTS
WHO/ M Montgomery
Interested in knowing more?
• Signup for listserve
–regular newsletters, event information, release of documents
• Share experiences in EzCollab discussions
• Participate in a webinar and/ Network meetings
• Use and provide feedback on tools and guidance
• Spread word to others
• Visit us online at:
http://www.who.int/household_water/network/en
http://waterinstitute.unc.edu/hwts
Stanford University, A Pickering
Thank you
Questions?