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Filariasis, ascariasis, amoebiasis, ringworm and disease control sheet
5-mark answer frame

Name the pathogens of amoebiasis, ascariasis, filariasis and ringworm. Give the symptoms of any two and the measures to control these diseases.

How to lay out the answer. Follow the frame, then write it in your own words.

  1. 1 · Name the pathogens. Amoebiasis: Entamoeba histolytica; ascariasis: Ascaris; filariasis: Wuchereria bancrofti and W. malayi; ringworm: Microsporum, Trichophyton, Epidermophyton.
  2. 2 · Symptoms of two.
    • Ascariasis: internal bleeding, muscular pain, fever, anaemia, intestinal blockage.
    • Filariasis: chronic inflammation of lymphatic vessels of lower limbs; elephantiasis; genital deformities.
  3. 3 · Mode of spread. Faeces-contaminated food and water (amoebiasis, ascariasis; houseflies as carriers), mosquito bite (filariasis), shared towels and soil (ringworm).
  4. 4 · Personal and public hygiene. Clean body, water and food; disposal of excreta; disinfecting tanks and pools; hygiene in public catering.
  5. 5 · Vector control, vaccines and drugs. Remove breeding places, nets and Gambusia; vaccination; antibiotics and other drugs.
  6. 6 · Close in one line. So most of these diseases are preventable by hygiene and by breaking the route of spread.

Scoring tip: Group the control measures under personal hygiene, public hygiene and vector control. Clear headings make marks easy to award.