Infectious disease AQA B1

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  • Infectious Disease
    • White blood cells
      • Produce antibodies
        • Makes antibodies that match the antigens which then destroys the bacteria
      • Ingest
        • White blood cell mothers and engulfs the pathogen and then releases enzymes which digest the pathogen
      • Produce Antitoxins
        • Will produce antitoxins which will kill the toxins
    • Micro organism
      • Viruses
        • Will go along to an ordinary cell and infect it, will start to reproduce inside it until the cell breaks open and is permantly damaged
      • Bacterium
        • Produces toxins which are poisons that harm the body
      • Only some of these micro organisms are pathogens
        • Funghi
        • Bacteria
        • Viruses
    • Igmaz Semmelweis 1850s
      • Knew there was something on the dead body that was causing childbed fever
      • Told people they had to wash their hands after dealing with dead bodies before they went to delivering babies
      • Childbed fever was detected a lot more often if medical students delivered the babies rather than midwifes
    • Vaccinations
      • 2) The body can then produce anti bodies to fit the antigens
      • 3) So if the body ever actually gets the disease it can produce the antibodies rapidly
      • 1) Contains a copy of the dangerous pathogen but still has the antigen on it
      • The more people vaccinated the harder it is to spread
  • Will go along to an ordinary cell and infect it, will start to reproduce inside it until the cell breaks open and is permantly damaged

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