By the end of this chapter, you will be able to:

• Consider the two forms of disease prevention available within health care systems: screening and immunization
• Explain the role of screening and immunization as methods of controlling risk
• Describe and discuss how screening is used to identify individuals who are considered to be at risk
• Discuss immunization as a method to identify people at risk of exposure to environmental pathogens
• Show an awareness of social and psychological processes involved in explaining these processes of risk management