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Giardia Serology

What Is a Serologic Test for Giardia Intestinalis?

A serologic test for Giardia intestinalis (also known as Giardia lamblia) is a blood-based diagnostic method used to detect antibodies produced in response to a Giardia infection. This test helps identify both current and past exposure to the parasite.

Role in Diagnosing Giardia Infections

While stool antigen tests are commonly used to detect active Giardia infections, serologic testing can be particularly useful in cases where stool samples are inconclusive or when investigating prolonged gastrointestinal symptoms.

When Serologic Testing Is Recommended

Serologic tests for Giardia lamblia may be considered in:

Chronic or recurring diarrhoea with no clear cause

Suspected Giardia exposure with negative stool results

Epidemiological studies or screening in high-risk populations

Private Giardia Serologic Testing in Slough and Surrounding Areas

For residents in Slough, Windsor, Langley, and Maidenhead, private blood testing for Giardia intestinalis is available to support accurate diagnosis and timely treatment. If you’re experiencing unexplained digestive issues or have been exposed to contaminated water or food, local testing services in Slough can help confirm infection and guide appropriate care.

There is an additional £20 phlebotomy fee for every donation.