Communicable Disease 1 - Introduction

• What are microorganisms?

  Tiny organisms including bacteria, viruses, protists, fungi
• What are pathogens?

  Microorganisms that can cause disease
• What are communicable diseases?

  Diseases caused by pathogens that spread
• What are the four types of pathogens?

  • Bacteria
  • Viruses
  • Protists
  • Fungi
• What is one way pathogens spread through the air?

  Via tiny droplets expelled when coughing or sneezing
• What are vectors in the context of pathogens?

  Organisms that transport pathogens
• What is the best way to prevent pathogen spread?

  Vaccinating everyone
• When do we isolate or quarantine individuals?

  For serious diseases that can harm others
• What are the three ways pathogens can spread?

  1. Through the air
  2. Through contaminated food or water
  3. Through direct contact
• What are the four measures to reduce pathogen spread?

  1. Maintain hygiene
  2. Kill vectors
  3. Vaccinate people
  4. Quarantine individuals