Water-borne Diseases By Ramin Nabizadeh. Diseases Related to Water Water-borne Diseases Water-washed Diseases Water-based Diseases Water-related Diseases.

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Presentation transcript:

Water-borne Diseases By Ramin Nabizadeh

Diseases Related to Water Water-borne Diseases Water-washed Diseases Water-based Diseases Water-related Diseases

Water-borne Diseases Diseases caused by ingestion of water contaminated by human or animal excrement, which contain pathogenic microorganisms

Include cholera, typhoid, amoebic and bacillary dysentery and other diarrheal diseases

Diarrheal Diseases Giardiasis (Protozoan) Cryptosporidiosis (Bacteria) Campylobacteriosis (Bacteria) Shigellosis (Bacteria) Viral Gastroenteritis (Virus) Cyclosporiasis (Parasite)

In addition, water-borne disease can be caused by the pollution of water with chemicals that have an adverse effect on health

Arsenic Flouride Nitrates from fertilizers Carcinogenic pesticides (DDT) Lead (from pipes) Heavy Metals

Water-washed Diseases Diseases caused by poor personal hygiene and skin and eye contact with contaminated water

These include scabies, trachoma, typhus, and other flea, lice and tick- borne diseases.

Water-based Diseases Diseases caused by parasites found in intermediate organisms living in contaminated water

Includes Schistosomiasis and Dracunculiasis

Water-related Diseases Water-related diseases are caused by insect vectors, especially mosquitoes, that breed or feed near contaminated water.

The Problem ~80% of infectious diseases > 5 million people die each year > 2 million die from water-related diarrhea alone Most of those dying are small children

Other Consequences Lost work days Missed educational opportunities Official and unofficial healthcare costs Draining of family resources

Control & Prevention

Global Governments Communities Individuals

Education Issues Hygiene education Good nutrition Improvements in habitation and general sanitation Higher education training in water- related issues

Global Surveillance Public health infrastucture Standardized surveillance of waterborne disease outbreaks Guidelines must be established for investigating and reporting waterborne diseases

The Future Even if by the year 2015 the proportion of people who are unable to reach or to afford safe drinking water is halved, between 34 and 76 million people, mostly children, will die from preventable water-borne diseases

More Challenges Developed countries and chlorine- resistant microbes Climate Changes Economic barriers for developing countries to sanitize large amounts of water

Climate Change Water scarcity compromises hygiene Reduced water pressure increases risk of back siphoning of contaminated water Floods causing breaching of barriers between sewage and water systems

Warming/cooling changes distribution of pathogens and vectors Increased UV exposure resulting in increased susceptability to disease Increased mutation rates with unpredictable effects on ecosystems (pathogen development)