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Ch 4: Disease Origins

About This Chapter

The Disease Origins chapter of this Immunology: Help & Review course is the simplest way to master disease control and prevention. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure you learn the essentials of the origins of disease.

Who's It For?

Anyone who needs help learning or mastering disease origins material will benefit from the lessons in this chapter. There is no faster or easier way to learn about the spread and prevention of disease. Among those who would benefit are:

  • Students who have fallen behind in understanding the difference between infection and disease
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning biology (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about how diseases progress
  • Students who struggle to understand their teachers
  • Students who attend schools without extra biology learning resources

How It Works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the Disease Origins chapter exam.

Why It Works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the Disease Origins chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any disease question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students Will Review:

This chapter helps students review the concepts in a disease origins unit of a standard immunology course. Topics covered include:

  • Types of diseases
  • Nosocomial infections
  • Normal human flora
  • Symbiotic interactions in diseases
  • Disease control and prevention

11 Lessons in Chapter 4: Disease Origins
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.

Preventing Disease: Normal Human Flora

3. 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

4. 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.

Progress of Disease: Infection to Recovery

5. 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 Spread of Disease: Endemic, Epidemic & Pandemic

6. 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?

7. 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

8. 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

9. 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.

Alpha & Beta Hemolytic Strep: Treatment

10. Alpha & Beta Hemolytic Strep: Treatment

In this lesson, you will learn about the illnesses caused by the alpha and beta hemolytic streptococci bacterium and the various methods for treating each type of infection.

Strep Viridans: Infection & Treatment

11. Strep Viridans: Infection & Treatment

What are the Strep viridans? It turns out they can be innocent, or they can be deadly. They are also becoming harder to treat. Find out what this is all about in this lesson.

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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