infection and response

• How do viruses make us feel ill?

  Invade our cells and they burst
• How does bacteria make us feel ill?

  produces toxins
• How is disease spread?

  • direct contact
  • water
  • air
• How can we prevent disease?

  • hygeine
  • isolation
  • vaccination
  • vectors
• What are three examples of viruses?

  • HIV
  • TMV
  • Measles
• What are the symptoms of TMV?

  Discolouration of plants which limits growth
• How is TMV spread?

  Direct contact
• What are the symptoms of measles?


  Red rash and fever
• How is measles spread?

  Through the air and droplets
• How is measles prevented?

  Vaccination
• What are the symptoms of HIV?

  • Mild flu like symptoms
  • damages immune system
• How is HIV spread?

  Sexual contact and sharing bodily fluids
• How can we prevent HIV?

  • using barrier contraception
  • cleaning needles
• What are the symptoms of salmonella?

  • vomiting
  • cramps
  • diarrhoea
  • fever
• How is salmonella spread?

  Eating uncooked food
• How can we prevent salmonella?

  • Fully cook food
  • vaccinate poultry
• What are the symptoms of gonorrohea?

  Discharge and pain when urinating
• How is gonorrhoea spread?

  sexual contact
• How can we prevent gonorrhoea?

  • antibiotics
  • barrier contraception
• Ways that white blood cells fight infection?

  • phagocytosis
  • antitoxins
  • antibodies