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WATER & DISEASES. Murray Biedler July 09, 2012 . Current Medical Reality. F-DIAGRAM: TRANSMISSION ROUTES. WATER-RELATED DISEASES. ENVIRONMENTAL CLASSIFICATIONS Faecal-Oral Water-Washed Water-Based Water-Related Vectors. Faecal-Oral Diseases.
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WATER & DISEASES Murray Biedler July 09, 2012
WATER-RELATED DISEASES ENVIRONMENTAL CLASSIFICATIONS • Faecal-Oral • Water-Washed • Water-Based • Water-Related Vectors
Faecal-Oral Diseases • Pathogenstransmitted by humanexcreta and theningested • Infections of intestinal tract (diarrhoea) - illness & death • Personal & domestic hygiene important
Transmision routesCholera SECONDARY FAECAL-ORAL TRANSMISSION PRIMARY WATER & FOOD BORNE TRANSMISSION Environmental vibrion reservoir
Water-WashedDiseases • Quantity of water more important than quality of water • Linked to personal and domestic hygiene
Skin and Eye Infections Skin sepsis Scabies Fungal Skin Infections Trachoma/Blindness Others Louse-borne Typhus Water-Washed Diseases
Vectorbased in water Ingested Dracunculiasis or Guinea Worm Skin Penetrating Schistosomiasis or Bilharziasis Water-BasedDiseases
Insect Vector Diseases • Spread by insects that : • breed in water • bite near water.
Breed in Water malaria (anopheles) dengue (aedes) yellow fever (aedes) onchocerciasis or river blindness (simulium black fly) Bite Near Water trypanosomiasis or sleeping sickness (glosina tsetse fly) Insect Vector Diseases
transmission Reservoir Host Reduce Reservoir Interrupt Transmission Treat Disease in person PreventDisease in population Control of DiseasesRelated to WHS