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Allied Health Microbiology: Chapter 12: Disease and Epidemiology

Allied Health Microbiology
Chapter 12: Disease and Epidemiology
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table of contents
  1. Cover
  2. Title Page
  3. Copyright
  4. Table Of Contents
  5. Preface
  6. Forward
  7. Chapter 1: An Invisible World
    1. 1.1 What Our Ancestors Knew
    2. 1.2 A Systematic Approach
    3. 1.3 Types of Microorganisms
    4. Summary
  8. Chapter 2: The Cell
    1. 2.1 Spontaneous Generation
    2. 2.2 Foundations of Modern Cell Theory
    3. 2.3 Unique Characteristics of Prokaryotic Cells
    4. Summary
  9. Chapter 3: Prokaryotic Diversity
    1. 3.1 Prokaryote Habitats, Relationships, and Microbiomes
    2. Summary
  10. Chapter 4: The Eukaryotes of Microbiology
    1. 4.1 Unicellular Eukaryotic Parasites
    2. 4.2 Parasitic Helminths
    3. 4.3 Fungi
    4. Summary
  11. Chapter 5: Acellular Pathogens
    1. 5.1 Viruses
    2. 5.2 The Viral Life Cycle
    3. 5.3 Prions
    4. Summary
  12. Chapter 6: Microbial Biochemistry
    1. 6.1 Microbial Biochemistry
    2. Summary
  13. Chapter 7: Microbial Growth
    1. 7.1 How Microbes Grow
    2. 7.2 Oxygen Requirements for Microbial Growth
    3. 7.3 The Effects of pH on Microbial Growth
    4. 7.4 Temperature and Microbial Growth
    5. Summary
  14. Chapter 8: Modern Applications of Microbial Genetics
    1. 8.1 Whole Genome Methods and Pharmaceutical Applications of Genetic Engineering
    2. 8.2 Gene Therapy
    3. Summary
  15. Chapter 9: Control of Microbial Growth
    1. 9.1 Controlling Microbial Growth
    2. 9.2 Testing the Effectiveness of Antiseptics and Disinfectants
    3. Summary
  16. Chapter 10: Antimicrobial Drugs
    1. 10.1 Fundamentals of Antimicrobial Chemotherapy
    2. 10.2 Mechanisms of Antibacterial Drugs
    3. 10.3 Mechanisms of Other Antimicrobial Drugs
    4. 10.4 Drug Resistance
    5. 10.5 Testing the Effectiveness of Antimicrobials
    6. 10.6 Current Strategies for Antimicrobial Discovery
    7. Summary
  17. Chapter 11: Microbial Mechanisms of Pathogenicity
    1. 11.1 Characteristics of Infectious Disease
    2. 11.2 How Pathogens Cause Disease
    3. 11.3 Virulence Factors of Bacterial and Viral Pathogens
    4. Summary
  18. Chapter 12: Disease and Epidemiology
    1. 12.1 The Language of Epidemiologists
    2. 12.2 Tracking Infectious Diseases
    3. 12.3 Modes of Disease Transmission
    4. 12.4 Global Public Health
    5. Summary
  19. Chapter 13: Innate Nonspecific Host Defenses
    1. 13.1 Physical Defenses
    2. 13.2 Chemical Defenses
    3. 13.3 Cellular Defenses
    4. 13.4 Pathogen Recognition and Phagocytosis
    5. 13.5 Inflammation and Fever
    6. Summary
  20. Chapter 14: Adaptive Specific Host Defenses
    1. 14.1 Overview of Specific Adaptive Immunity
    2. 14.2 Major Histocompatibility Complexes and Antigen-Presenting Cells
    3. 14.3 T Lymphocytes and Cellular Immunity
    4. 14.4 B Lymphocytes and Humoral Immunity
    5. 14.5 Vaccines
    6. Summary
  21. Chapter 15: Diseases of the Immune System
    1. 15.1 Hypersensitivities
    2. 15.2 Autoimmune Disorders
    3. 15.3 Organ Transplantation and Rejection
    4. Summary
  22. Chapter 16: Skin and Eye Infections
    1. 16.1 Anatomy and Normal Microbiota of the Skin and Eyes
    2. 16.2 Bacterial Infections of the Skin and Eyes
    3. 16.3 Viral Infections of the Skin and Eyes
    4. 16.4 Mycoses of the Skin
    5. 16.5 Helminthic Infections of the Skin and Eyes
    6. Summary
  23. Chapter 17: Respiratory System Infections
    1. 17.1 Anatomy and Normal Microbiota of the Respiratory Tract
    2. 17.2 Bacterial Infections of the Respiratory Tract
    3. 17.3 Viral Infections of the Respiratory Tract
    4. Summary
  24. Chapter 18: Urogenital System Infections
    1. 18.1 Anatomy and Normal Microbiota of the Urogenital Tract
    2. 18.2 Bacterial Infections of the Urinary System
    3. 18.3 Bacterial Infections of the Reproductive System
    4. 18.4 Viral Infections of the Reproductive System
    5. 18.5 Fungal Infections of the Reproductive System
    6. 18.6 Protozoan Infections of the Urogenital System
    7. Summary
  25. Chapter 19: Digestive System Infections
    1. 19.1 Anatomy and Normal Microbiota of the Digestive System
    2. 19.2 Microbial Diseases of the Mouth and Oral Cavity
    3. 19.3 Bacterial Infections of the Gastrointestinal Tract
    4. 19.4 Viral Infections of the Gastrointestinal Tract
    5. 19.5 Protozoan Infections of the Gastrointestinal Tract
    6. 19.6 Helminthic Infections of the Gastrointestinal Tract
    7. Summary
  26. Chapter 20: Circulatory and Lymphatic System Infections
    1. 20.1 Anatomy of the Circulatory and Lymphatic Systems
    2. 20.2 Bacterial Infections of the Circulatory and Lymphatic Systems
    3. 20.3 Viral Infections of the Circulatory and Lymphatic Systems
    4. 20.4 Parasitic Infections of the Circulatory and Lymphatic Systems
    5. Summary
  27. Chapter 21: Nervous System Infections
    1. 21.1 Anatomy of the Nervous System
    2. 21.2 Bacterial Diseases of the Nervous System
    3. 21.3 Acellular Diseases of the Nervous System
    4. Summary
  28. Creative Commons License
  29. Recommended Citations
  30. Versioning

Chapter 12: Disease and Epidemiology

Signs like this may seem self-explanatory today, but a few short centuries ago, people lacked a basic understanding of how diseases spread. Microbiology has greatly contributed to the field of epidemiology, which focuses on containing the spread of disease.
Figure 12.1 Signs like this may seem self-explanatory today, but a few short centuries ago, people lacked a basic understanding of how diseases spread. Microbiology has greatly contributed to the field of epidemiology, which focuses on containing the spread of disease. (credit: modification of work by Tony Webster)

Chapter Outline

12.1 The Language of Epidemiologists

12.2 Tracking Infectious Diseases

12.3 Modes of Disease Transmission

12.4 Global Public Health

Introduction


In the United States and other developed nations, public health is a key function of government. A healthy citizenry is more productive, content, and prosperous; high rates of death and disease, on the other hand, can severely hamper economic productivity and foster social and political instability. The burden of disease makes it difficult for citizens to work consistently, maintain employment, and accumulate wealth to better their lives and support a growing economy.

In this chapter, we will explore the intersections between microbiology and epidemiology, the science that underlies public health. Epidemiology studies how disease originates and spreads throughout a population, with the goal of preventing outbreaks and containing them when they do occur. Over the past two centuries, discoveries in epidemiology have led to public health policies that have transformed life in developed nations, leading to the eradication (or near eradication) of many diseases that were once causes of great human suffering and premature death. However, the work of epidemiologists is far from finished. Numerous diseases continue to plague humanity, and new diseases are always emerging. Moreover, in the developing world, lack of infrastructure continues to pose many challenges to efforts to contain disease.

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12.1 The Language of Epidemiologists
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Copyright © 2019 by Open Stax and Linda Bruslind Allied Health Microbiology by Open Stax and Linda Bruslind is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.
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