Communicable disease

• What are microorganisms?

  A group of tiny organisms including bacteria, viruses, protists, and fungi
• What are pathogens?

  Microorganisms that can cause disease
• How can pathogens spread?

  They can spread from person to person
• What are the diseases caused by pathogens called?

  Communicable or infectious diseases
• Which organisms can pathogens affect?

  Both animals and plants
• What are the four types of pathogens?

  • Bacteria
  • Viruses
  • Protists
  • Fungi
• How do airborne pathogens spread?

  They are carried in tiny droplets expelled when we cough or sneeze
• What is cholera?

  A bacterial disease spread by contaminated drinking water
• How is salmonella bacteria spread?

  By eating contaminated food, particularly chickens
• How does athlete's foot spread?

  By walking barefoot on contaminated surfaces
• What is a common method to prevent the spread of diseases?

  Being generally hygienic, such as washing hands
• What are vectors in the context of pathogens?

  Organisms that transport the pathogen
• How can insect vectors be killed?

  By spreading insecticides
• What is the best way to prevent the spread of pathogens?

  Vaccinating everybody
• What is the purpose of isolating or quarantining individuals?

  To prevent the spread of serious diseases
• What are the three ways pathogens can be spread?

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

  1. Be hygienic
  2. Kill the vectors
  3. Vaccinate people
  4. Quarantine people
• What will the next three videos focus on?

  A closer look at the four types of pathogens and their diseases