Giardia Lamblia (intestinalis)

on 25.1.08 with 0 comments



Disease, disease manifestations
  • Can be asymptomatic
  • Diarrhoea, stomach cramps, loss of appetite, nausea
Life-cycle: stages, forms, diseases caused, intervention points

  • Pear-shaped motile trophozoite
  • And cyst form
Transmission and shedding

  • Direct infection via ingestion of cysts
  • Cysts pass into stools intermittently
Hosts, reservoirs in life-cycle; vectors

  • Human hosts, can be animal
  • Vectors: contaminated food, hands, water
  • Probably zoonotic
Main drugs in treatment
  • Metronidazole or tinidazole
Main drugs used in prophylaxis (preventative Rx)
  • Good personal hygiene, clean water, carefully prepared food
Other information

  • Cosmopolitan flagellate
  • Most common intestinal protozoan
  • Common in Aborigines, childcare facilities
  • One of most commonly acquired by travellers

Category: Microbiology Notes

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