Ch 7: Understanding Diseases

About This Chapter

Check your understanding of essential disease concepts with this self-paced microbiology chapter. These lessons and quizzes can help you review disease information for upcoming exams, assignments, homework or just for fun.

Understanding Diseases - Chapter Summary

This comprehensive microbiology chapter is designed to improve your understanding of diseases. As you work through these simple and engaging lessons, you'll study topics like disease prevention and treatment, disease types, amensalism and disease spreading. The chapter can be accessed at any time that fits your schedule, and you can use any computer or mobile device to study. Each lesson comes with a short quiz, and we've included a chapter exam to help you retain the information. Upon completion of the chapter, you should be able to:

  • Evaluate basic disease control and prevention concepts
  • Differentiate between infections and diseases
  • Analyze examples of clinical, subclinical, communicable and noncommunicable diseases
  • Tell how normal human flora can prevent disease
  • Describe symbiotic disease interactions
  • Define the concept of amensalism
  • Outline the process of disease from infection to recovery
  • Recognize several infectious disease transmission routes
  • Compare endemic, epidemic and pandemic disease spreading
  • Identify different types of diseases
  • Understand the causes of nosocomial infections
  • Explain disease establishment in terms of entry, dose and virulence

13 Lessons in Chapter 7: Understanding Diseases
Test your knowledge with a 30-question chapter practice test
Disease Control & Prevention

1. Disease Control & Prevention

This lesson will discuss the many different ways by which people can control disease. Everything from vaccination to sterilization and beyond will be mentioned so that you can better appreciate the large arsenal of tools at our disposal.

The Differences Between Infection and Disease

2. The Differences Between Infection and Disease

This lesson will go over the differences between an infection and a disease. We'll cover everything from prions and infectivity to opportunistic infections and idiopathic disease. We'll also learn what the etiology of disease is and much more.

Clinical & Subclinical Diseases: Definition & Examples

3. Clinical & Subclinical Diseases: Definition & Examples

This lesson begins with an explanation of clinical and subclinical disease by using an example of hypothyroidism in two sisters. It then explains two further examples of clinical and subclinical disease.

Communicable & Noncommunicable Diseases: Definition & Examples

4. Communicable & Noncommunicable Diseases: Definition & Examples

A disease is a condition in the body that disrupts normal functions. Why are some diseases contagious while others aren't? This lesson discusses the difference between communicable and noncommunicable diseases.

Preventing Disease: Normal Human Flora

5. Preventing Disease: Normal Human Flora

This lesson will give you a basic understanding of what human flora is. You'll learn about the different locations of flora, such as the gut, and what mutualistic, commensal, and opportunistic microbes are.

Symbiotic Interactions in Disease: Definition, Theory & Examples

6. Symbiotic Interactions in Disease: Definition, Theory & Examples

This lesson will describe something known as symbiosis and symbionts. We will explore the three main types and examples of symbiotic relationships as we define mutualism, parasitism, and commensalism.

Amensalism: Examples & Definition

7. Amensalism: Examples & Definition

Many types of relationships exist between species on Earth, but not all are positive. In this lesson, we will learn about amensalism to gain an understanding of how this unique type of relationship works.

Progress of Disease: Infection to Recovery

8. Progress of Disease: Infection to Recovery

This lesson will teach you about the five basic steps of the development of disease, what they are called, and what occurs during each phase. We'll talk about the incubation and prodromal period as well as the periods of convalescence, decline, and illness.

The Different Routes of Infectious Disease Transmission

9. The Different Routes of Infectious Disease Transmission

This lesson will discuss the different ways you can get sick. We'll discuss how pathogenic microbes can be transmitted to you or someone else as we explore horizontal and vertical transmission as well as vectors, vehicles, and fomites.

The Spread of Disease: Endemic, Epidemic & Pandemic

10. The Spread of Disease: Endemic, Epidemic & Pandemic

This lesson will talk about what an endemic disease is and how it is different from an epidemic. We'll also discuss how an epidemic differs from something known as a pandemic. Finally, we'll look at some examples of each to help solidify these points.

What Are the Types of Diseases?

11. What Are the Types of Diseases?

This lesson will focus on the different types of diseases that a person may develop or contract. We'll discuss the differences between acute, chronic, primary, secondary, local, and systemic diseases.

Nosocomial Infections: Definition, Causes & Prevention

12. Nosocomial Infections: Definition, Causes & Prevention

In this lesson, you will learn about what a nosocomial infection is. We'll discuss, in particular, the many reasons you may get such an infection, which types of pathogens are most likely to cause one, and the most common places in your body you may acquire one.

Establishment of Disease: Entry, Dose & Virulence

13. Establishment of Disease: Entry, Dose & Virulence

This lesson will delve into what predisposes an individual to get sick. We'll talk about things like the entry, dose, and virulence of a pathogen and how they play a role in the establishment of a disease.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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