Health and Disease

• Communicable Diseases


  • Can be spread (contagious)
  • eg covid-19, Influenza
• Non-communicable diseases


  • Cannot be spread (not contagious)
  • e.g cancer, Diabetes
• Pathogen


  A microorganism that can cause diseases
• Cancer


  • Caused by uncontrolled cell growth and division
  • Results in tumours
• Benign Tumors


  • Masses of abnormal cells that stay in one place (don't invade other parts of the body)
  • Isn't normally dangerous and the tumor isn't cancerous
• Malignant Tumours


  • Spread to other parts in the body
  • Cancerous and can be fatal
  • The cells can break off and travel into the bloodstream