Daniele Lantagne, PE Centers for Disease Control and Prevention Household Water Treatment in Developing Countries: Successes, Failures, and Way Forward.
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Daniele Lantagne, PE Centers for Disease Control and Prevention Household Water Treatment in Developing Countries: Successes, Failures, and Way Forward
Why do children die of diarrhea? Youngest children –Immature immune system –Less physiologic reserve Multiple physiologic insults –Malnutrition Protein & calorie deficient Micronutrient deficient –Frequent infections Feces contaminated environment –Water, Food, Environment Limited access to effective clinical care
How many child deaths are due to unsafe water? Question ignores: –Web of causality –Assumes a single cause of death Risks professional groups –Arguing for resources –Not collaborating to address problem Child mortality from diarrhea is an enormous global public health problem and contaminated water contributes importantly.
Q: How much disease could be prevented by better managing water, sanitation and hygiene ? A: 10% "Almost one tenth of the global disease burden could be prevented by improving water supply, sanitation, hygiene and management of water resources"
WSH = disease and poverty ? Inadequate water supply Unsafe water resources Inequitable access Time, financial cost Disease burden Health care costs POVERTY
WSH = motor of development Improved water supply Safe water resources Universal access Time, financial savings Averted disease costs Health & education Development
What is safe water? Health workers –Water that does not cause morbidity or mortality in children < 5 Engineers –Water without bacterial contamination at exit of plant or pump Millennium Development Goals –Protected Sources –Goal: reduce in half those without access to “improved water” by 2015 Safe water is water that is safe to drink in the users’ cup.
The World (seen through the lens of diarrheal deaths) Territories are sized in proportion to the absolute number of people who died from diarrheal diseases in one year Source: http://www.worldmapper.orghttp://www.worldmapper.org
Goal: Health Impact Diarrheal Disease Reduction 19922004 Hygiene (handwashing)-33%-42% Sanitation-36%-24% Water Supply-19%-23% Water Treatment-15%-39% ALL are necessary. Start with one. Leverage to others.
Way Forward Think strategically, assess programs, fix failures. Keep an open-mind. Base research on implementation needs. Think at-scale. Implement and fund proven technologies. We are having impact BUT we can always improve.
Key questions for future Can we increase demand for improved water quality among the group in highest need? Can we develop sustainable systems that provide point of use approaches to communities in highest need? Can we reduce the burden of disease, particularly among the poorest with this approach?
“The notion that ‘being humanitarian’ and ‘doing good’ are somehow inevitably the same is a hard one to shake off” (Slim, 1997) Thank you. I am happy to take questions. firstname.lastname@example.org