Chapter 3. Sanitation and public health

QuestionsLearning objectivesDownload
Module 3.1.
Exposure and effects in humans
How are infectious diseases transmitted? What happens when people are exposed to pathogens? To become familiar with the most important pathogens found in water and sanitation systems, with the symptoms they cause and with their effect on individuals and populations. ppt - 5.6 MB
pdf - 3.6 MB
Module 3.2.
Environmental transmission of pathogens
Where do the pathogens to come from? How do pathogens in excreta contaminate the environment? To become familiar with environmental transmission routes for pathogens, especially in relation to water and sanitation. ppt - 2.6 MB
pdf - 2.4 MB
Module 3.3.
Pathogen reduction
How persistent are pathogens in the environment? How can we prevent exposure and disease transmission in sanitation systems? To become familiar with the behaviour of pathogens in the environment and the effects of treatment and strategies for minimizing the transmission of disease, esp. in relation to agricultural use of excreta. ppt - 1.1 MB
pdf - 2 MB
Module 3.4.
Health targets
Which targets can be achieved in relation to exposure and treatment? How are barriers used in guidelines to minimise health risks? To become familiar with faecal indicators and the risk concept, and to understand their application in guidelines for reuse of excreta and greywater. ppt - 1.8 MB
pdf - 2.5 MB
Module 3.5.
Risk management
Can we measure a risk of disease transmission? How can sanitation systems be evaluated? To be aware of how the potential health impacts of sanitation systems can be evaluated and compared regarding their potential health impact. ppt - 4.1 MB
pdf - 2.1 MB
Total Chapter 3 download:
ppt - 15.7 MB -- pdf - 12.3 MB
Direct links to other chapters:
Ch1 Ch2 Ch4 Ch5