Giardiasis

Definition

Giardiasis is an intestinal infection caused by the protozoan parasite Giardia lamblia. It leads to gastrointestinal symptoms such as diarrhea, cramps, and nausea.

5 Must Know Facts For Your Next Test

1. Giardia lamblia is transmitted through contaminated water or food.
2. The infection often causes prolonged diarrhea lasting several weeks.
3. Diagnosis is typically made via stool examination for cysts and trophozoites.
4. Treatment usually involves antiprotozoal medications like metronidazole.
5. Preventive measures include drinking filtered or boiled water and practicing good hygiene.

Review Questions

• What organism causes giardiasis?
• How is giardiasis most commonly transmitted?
• What are the common symptoms of a giardiasis infection?

Related terms

Giardia lamblia: A protozoan parasite that causes giardiasis.

Metronidazole: An antiprotozoal medication used to treat giardiasis.

Trophozoite: The active, motile feeding stage of some protozoan parasites including Giardia lamblia.