Our bodies are amazing structures that defend us against infections under normal circumstances. As you read this chapter, you will learn about disease-causing microorganisms, how the body defends itself against infections, and ways that infections might occur. You will also learn about antibiotic-resistant organisms and the importance of educating patients regarding the proper use of antibiotics. The chapter focuses on the history of disease prevention, disease processes, the body's defenses, and the cycle of infection.

Outline

• History of Infectious Disease Prevention
• Microorganisms and Disease
• Infectious Diseases
• Drug-Resistant Microorganisms
• The Disease Process
• The Body's Defenses
• The Cycle of Infection
• Breaking the Cycle

Learning Outcomes

After completing Chapter 19, you will be able to:

 19.1 Explain the historical background of infectious disease prevention.
 19.2 Identify the types of microorganisms that cause disease.
 19.3 List some infectious diseases, and identify their signs and symptoms.
 19.4 Discuss the importance of preventing antibiotic resistance in a health-care setting.
 19.5 Describe ways you can help prevent antibiotic resistance in health-care settings.
 19.6 Explain the disease process.
 19.7 Explain how the body's defenses protect against infection.
 19.8 Describe the cycle of infection.
 19.9 Identify and describe the various methods of disease transmission.
 19.10 Explain how you can help break the cycle of infection.

Summary