Microorganisms and Disease Prevention

From the study guide

Course Outline

  1. Micro-organisms
  2. Pathogens and Diseases
  3. Contamination and Infection
  4. Asepsis and Sterilization
  5. Antiseptics and Surface Disinfection
  6. Antibiotics and Bacterial Control
  7. Vaccination and Immunity

1. Micro-organisms

Key Concepts & Definitions

  • Micro-organisms: Microscopic organisms commonly called microbes; they are living entities visible only under a microscope.
  • Microbes: Defined as microscopic living entities, these include bacteria, fungi, viruses, and protozoa, which are too small to be seen with the naked eye.
  • Pathogen: An organism that causes disease (see section 2).
  • Contamination: The entry of micro-organisms into the internal environment of a living being, potentially leading to infection (see section 3).
  • Infection: The multiplication of micro-organisms within a living organism, which can result in disease.
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Practice quiz preview

1. What are micro-organisms?

2. What is vaccination as defined in the context of controlling diseases?

3. What is the main difference between contamination and infection as highlighted in microbiology?

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Flashcard preview

Micro-organisms — definition?

Microscopic living entities like bacteria, fungi, viruses.

Pathogen — role?

Organism that causes disease in hosts.

Micro-organisms — definition?

Microscopic living entities, visible under microscope.

Pathogen — role?

Organism causing disease.

Contamination — entry?

Entry of microbes into the body.

Infection — process?

Microorganism multiplication within a host.

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Frequently asked questions

What does the Microorganisms and Disease Prevention study guide cover?

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The practice quiz has 8 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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