Health and Disease

• Non-communicable Disease


  non contagious
• communicable Diseases

  • covid-19
  • Influenza
  • Malaria
• Non-communicable Diseases


  • cancer
  • CHD
  • Diabetes
• Measles


  • fever red skin rash
  • spread by exchanging bodily fluids (cough, sneezes)
  • controlled by vaccination
• HIV


  • spread by unprotected sex, blood transfusion, transplants
  • flu-like symptoms, night sweats, weight loss, tiredness
  • controlled by protected sex
  • attacks WBC therefore weak immune system (more likely to catch other diseases like AIDS)
• TMV-Tobacco Mosaic virus

  Causes plant discolouration
• TMV-Tobacco Mosaic virus

  • Spread by direct contact
  • Stop the spread by burning the plant
• Less chlorophyll


  Slower rate of photosynthesis
• Slower rate of photosynthesis

  Less glucose
• Less glucose


  Less respiration and release less energy
• Less respiration and release less energy


  Plant doesn't grow as much
• Gonorrhoea


  Yellow or green discharge from penis or vagina
• Gonorrhoea


  • Spread by STI
  • Controlled by taking antibiotics, abstaining from sexual intercourse