Topic Two

What are Infectious Diseases?

Explore the basics of infectious diseases, understanding what they are, how they differ from non-infectious diseases, and the primary agents responsible for spreading infections.

LEARNING INTENTIONS

  • Understand what defines an infectious
    disease.
  • Differentiate between infectious and non-infectious diseases.
  • Identify the common pathogens causing infectious diseases.

SUCCESS CRITERIA

  • Explain the characteristics of infectious diseases.
  • Provide examples of pathogens responsible for these diseases.
  • Compare and contrast infectious and non-infectious diseases with clear examples.

What are Pathogens and How do they Spread?

Pathogens, or germs, are tiny organisms—such as bacteria, viruses, fungi, and parasites—that can cause diseases in humans, animals, and plants. These microbes can invade the body, disrupt normal functions, and lead to various health conditions. 

Watch the video below with Prof. Robert Booy to understand the four main ways pathogens spread: 

1. Direct Contact
2. Indirect Contact
3. Insect Bites
4. Food Contamination 

An interview with Prof Michael Good

In this interview, Prof. Michael Good, an expert in immunology, explores critical aspects of infectious diseases and vaccination. He discusses the ongoing importance of vaccine research, the challenges of creating effective vaccines for complex diseases like malaria, and the significance of understanding how infections spread. Prof. Good also highlights the collaborative nature of modern medical research and the goal of developing affordable vaccines accessible to all, particularly in underserved communities worldwide.

Topics
Topic 2.2