1. Viral
  2. Protozoan
  3. Bacterial
  4. Parasitic
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Option 4 : Parasitic

Key facts about pathogen and the diseases caused by it:

  • Parasitic type of pathogen causes the water-borne disease Ascariasis.
  • It is a roundworm organism found in the small intestine mostly occurs in children.
  • The infection takes place by eating food or drink contaminated water with Ascaris eggs from human excreta.
  • Abdominal pain, Abdominal swelling, shortness of breathing, fever and diarrhoea are the main symptoms of this disease.
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