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WASH Related Diseases Session 1. The Environmental Burden of Disease. Burden of Disease. Question to group What is the current global burden of disease?. Burden of Disease. Question to group
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WASH Related DiseasesSession 1 The Environmental Burden of Disease
Burden of Disease • Question to group • What is the current global burden of disease?
Burden of Disease • Question to group • For every 10 deaths worldwide how many would you classify as communicable disease related, non-communicable disease related and injuries?
Burden of Disease • Out of every 10 deaths worldwide, • 6 are due to non communicable conditions • 3 to communicable, reproductive or nutritional conditions and • 1 to injuries • Source: World Health Statistics 2009, WHO
Environmental Burden • “In children under the age of five, one third of all disease is caused by environmental factors such as unsafe water and air pollution” • “Every year; the lives of four million children under 5 years – mostly in developing countries could be saved by preventing environmental risks such as unsafe water and polluted air” Source: WHO http://www.who.int/features/factfiles/environmental_health/en/index.html
Environmental Burden of Disease • Question to group • Of the Environmental/WASH related diseases which diseases account for the greatest burden?
Environmental fraction Non-environmental Diseases with largest environmental contributions (I) Diarrhoea Lower resp. infections Other unintentional inj. Malaria Road traffic injuries COPD Perinatal conditions Ischaemic heart dis. Childhood cluster Lead-caused MMR Drownings HIV/AIDS 0 1% 2% 3% 4% 5% 6% % of global disease burden in DALYs Source: WHO
Prüss-Üstün, A. and Corvalán C., Healthy Environments, Towards an estimate of the environmental burden of disease, WHO, 2006
The Burden of Disease • Burden of disease: the headlines • 1.9 million attributable annual deaths from diarrhoea • 1.2 million malaria deaths each year • Burden of disease: the details • 1.4 million preventable child deaths from diarrhoea • 860 000 preventable child deaths from malnutrition • One third of the world population (2 billion infections) affected by intestinal parasitic worms • 25 million people seriously incapacitated by lymphatic filariasis • 200 million people with preventable schistosomiasis infections • 5 million people visually impaired by trachoma • 280 000 preventable deaths from drowning Source: Adapted from WHO
Under 5’s • In the under 5’s what are the key causes of death?
New evidence showing that HWWS can reduce ARI’s by up to 23% 35% attributable to malnutrition New evidence showing that maternal HWWS can reduce neonatal mortality by 44% Clear association between undernutrition and intestinal infections Source:Therese Dooley, UNICEF, World Water Day Conference, Dublin, March 09
Mortality in the Under 5’s • Africa Region • Neonatal – 21% • HIV/AIDS – 5.0% • Diarrhoea – 16.3% • Measles – 3.9% • Malaria – 15.6% • Pneumonia – 20.4% • Injuries – 2.4% • Other – 15.4% • SE Asia Region • Neonatal – 39% • HIV/AIDS – 0.4% • Diarrhoea – 19.5% • Measles – 5.5% • Malaria – 0.4% • Pneumonia – 13.7% • Injuries – 5.3% • Others – 16.2% Source: World Health Statistics 2009, WHO