Additional Definitions

• Vaccine - injections that stimulates the body's immune system to fight against a specific infectious pathogen
• Herd Immunity - When a group of people are immune against a disease
• Virus - an infectious pathogen that only replicates within a host organism.
• Infectious disease - an illness caused by a pathogen that passes between organisms.
• Non-infectious disease - Diseases that are not caused by pathogens and cannot be transmitted between organisms, e.g cancer.
• Parasite - Organisms that lives on/in the body of another organisms (host) and takes nutrients from it.
• Fungi:

  • can cause disease in a warm and moist environment.
  • It is passed between people by skin-to-skin contact, sharing of towels, etc.