Giardiasis is an intestinal infection caused by the microscopic parasite Giardia lamblia. Contaminated food, water, or direct contact spreads it, leading to diarrhea, abdominal cramps, and malabsorption in some individuals.

Giardiasis (Giardia Infection) FAQ


What causes giardiasis?

Giardiasis is caused by ingesting the Giardia parasite, often through contaminated water or food.

Is giardiasis contagious?

Yes, it can spread through direct contact with an infected person's feces or contaminated items.

What are common giardiasis symptoms?

Diarrhea, abdominal pain, bloating, nausea, and weight loss are typical symptoms.

How is giardiasis diagnosed?

Stool tests or intestinal biopsy are used to detect Giardia parasites or their DNA.

What medications treat giardiasis?

Metronidazole, tinidazole, or nitazoxanide are commonly prescribed.

How long does giardiasis treatment take?

Typically 1-2 weeks of medication, depending on the treatment and severity.

Can giardiasis resolve without treatment?

Some cases may resolve on their own, but treatment is usually recommended.

How to prevent giardiasis?

Avoid untreated water, practice good hygiene, and ensure proper food handling.

Is giardiasis serious?

It can be severe in immunocompromised individuals or those with poor hygiene access.

Can I get giardiasis from pets?

Yes, pets can carry Giardia; keep their litter boxes clean and wash hands.

What about giardiasis and travel?

Travelers to areas with poor sanitation are at higher risk; take preventive measures.

How long does giardiasis last?

Without treatment, it can last several weeks or become chronic.

Can giardiasis lead to complications?

Malnutrition, weight loss, and intestinal issues can occur if untreated.

Is there a vaccine for giardiasis?

No vaccine is currently available for giardiasis prevention.

When to see a doctor for giardiasis?

Consult a doctor if experiencing persistent diarrhea, especially after travel or exposure.

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