MEDICAL PARASITOLOGY - PowerPoint PPT Presentation

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MEDICAL PARASITOLOGY

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MEDICAL PARASITOLOGY & ENTOMOLOGY LECTURER: SR. NORAZSIDA RAMLI Intestinal Ciliates Phylum: Ciliophora Class: Kinetofragminophora Genus: Balantidium Species: coli The ... – PowerPoint PPT presentation

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Title: MEDICAL PARASITOLOGY


1
MEDICAL PARASITOLOGY ENTOMOLOGY
  • LECTURER
  • SR. NORAZSIDA RAMLI

2
Intestinal Ciliates
  • Phylum Ciliophora
  • Class Kinetofragminophora
  • Genus Balantidium
  • Species coli

3
  • The only pathogenic intestinal ciliate.
  • The largest intestinal protozoan.
  • Causing gastroenteritis in man.
  • Have 2 stages trophozoite, cyst.

4
Trophozoite
  • 30-100µm by 30-80µm
  • Very large ovoid shape.
  • Large bean-shaped macronucleus.
  • Small spherical micronucleus.
  • Numerous cilia.
  • Cytostome/cytopyge.

5
Balantidium coli
6
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7
Cyst
  • 45-65µm by 30-80µm
  • Oval or spherical shape.
  • Large macronucleus.

8
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9
Life cycle
10
Life cycle
11
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12
Transmission
  • Transmitted by the fecal-oral route,
  • Reservoir host pig
  • Infected food handlers may be implicated in the
    spread of this disease.

13
Pathogenesis
  • Symptoms abdominal pains, bloody diarrhea.
  • Severe cases abscesses and ulcers in the mucosa
    and sub-mucosa of the large intestine, amebic
    dysentery.
  • Chronic infection some cases r asymptomatic.
  • Extra intestinal infections in the liver, lungs
    and other organs.

14
Diagnosis
  • Microscopy examination by examining stool
    specimens by wet prep and permanently stained
    smears.

15
Treatment
  • Take antimicrobial agents such as
  • Tetracycline
  • Metronidazole
  • Iodoquinol

16
Prevention
  • Practice good personal hygiene.
  • Have a proper sanitary condition.
  • Take caution in dealing with pigs.
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