Communicable diseases

• Ring Rot, tabacco mosaic virus, potato Blight, Black
• Tobacco masaic
• Potato blight
• Angus Ring worm
• is affects Potatoes, tomatoes end aubergines
• can be treated by antifungal creams
• Athlete's foot
• • antifungal cream for treatment
• Black Sigatoka
• ring rot

  • plant disease
• ring rot

  • plant disease
  • bacterial
  • affects potatoes, tomatoes and aurbergines
  • damages leaves and fruits
  • no cure
• tobacco mosaic virus

  • plant disease
  • virus
  • damages leaves, fruits, flowers and stunts growth and yield
  • no cure, however resistant crop strains
• potato blight
• potato blight

  • plant disease
  • protoctista
  • caused by the fungus oomycete p infesters
  • its hype penetrates host cells
  • destroys leaves and fruits
  • no cure however resistant crop strains
  • careful managements reduces risks
• ringworm

  • animal disease
  • fungal
  • there is a rash and can appear anywhere on the body
  • van be treated by antifungal cream
  • direct skin to skin contact
• athletes foot

  • animal disease
  • fungal
  • direct contact
  • anti fungal cream for treatment
  • ichy rashes on feet
• black Sigatoka

  • plant disease
  • fungal
  • spread through rain splash and wind borne spores
  • remove infected leaves and space plants to reduce risk of spreading
  • reddish brown rusty flecks in the bottom of the leaves
• HIV/AIDs is a virus that attacks the immune system and causes it to fail
• HIV/aids

  • animal disease |
  • virus
  • attacks immune system
  • antivitroviral medicine for treament
  • fever, heachaches, muscle aches, joint pains
  • sexual interactions
• malaria

  • animal disease
  • protoctista
  • misquito vector
  • antibiotics for treatment
• what type of immunity is given by influenza vaccine

  artificial active
• what type of immunity is given by placenta

  natural passive
• what type of immunity is given by antibodies

  artificial passive
• role of B memory cells in secondary immune response

  B memory cells form plasma cells which produce antibodies and the antibodies binds to destroy antigen
• roles of phagosomes and lysosomes in phagocytosis

  phagosomes engulf the pathogen and the lysosomes combines with the phagosome the releases enzymes to break down the pathogen
• Horizontal - from organisms to organisms, through direct or indirect methods
• Vertical transmission - from mother to child during pregnancy or via breast milk
• Transmission of pathogens in animals

  Human behaviour

  land use and development

  breakdown if public health

  international travelling

  climate change

  over crowding

  compromised immune system
• Non specific human defences

  Skin, nose, hair, eyelashes, tear, mucus and stomach acid