Invading the Body

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Inoculation

  • Pathogen inoculated through a break in the skin
     
  • Sharing needles
     
  • Cuts and scratches
     
  • Injury
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Inhalation

  • Caused by droplet infection - people breathe it in
     
  • Coughing, sneezing, talking
     
  • Flu
     
  • Measles
     
  • TB
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Vectors

  • Living organism (mosquito) transmit infections from one host to another
     
  • Insects
     
  • Malaria
     
  • Yellow fever
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Direct Contact

  • Spreading of skin diseases in children
     
  • Sexual diseases spread by direct contact of genital organs
     
  • Impetigo
     
  • Syphilis
     
  • Gonorrhoea
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Ingestion

  • Transmitted through contaminated food and drink
     
  • Raw or undercooked food pose a greater risk
     
  • Salmonella poisoning
     
  • Hepatitis A
     
  • Diarrhoea
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Fomites

  • Inanimate objects that carry pathogens
     
  • Hospital towels, wash cloths
     
  • Staphylococcus infections
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