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Schistosoma antibody, serum/plasma (qualitative or semi-quantitative screening)

Published: August 9, 2026Updated: August 16, 2026

This test detects antibodies in your blood that may indicate past or current exposure to *Schistosoma*, a parasitic worm that can cause infections like schistosomiasis.

Quick summary

["This test helps identify if your immune system has reacted to a parasitic infection from *Schistosoma* worms."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
6631-6
Short code
Schistosoma Ab Ser Ql CF
Synonyms
Schistosoma Ab Ser Ql CF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
comp-fix
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like fever, rash, joint pain, or digestive issues that could be linked to a parasitic infection. It’s also used in areas where schistosomiasis is common to screen for exposure, especially in travelers or individuals with risk factors like exposure to contaminated water.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test checks for antibodies in your serum or plasma, which your body produces in response to the parasite.

What the Results Mean

A positive result suggests your immune system has detected *Schistosoma* antibodies, meaning you likely had exposure at some point. A negative result means no detectable antibodies were found, but this doesn’t rule out past exposure or infection. Results are qualitative (yes/no) or semi-quantitative (approximate levels), so they don’t indicate the severity of infection.

Next Steps and Follow-Up

If your results are positive, your provider may order additional tests (like stool or urine exams) to confirm the infection or guide treatment. If negative, they may recommend retesting if symptoms persist or if you’ve had recent exposure to high-risk areas.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Schistosomiasis is a chronic infection caused by parasitic worms that live in freshwater. Antibody tests help diagnose exposure but aren’t definitive for active infection. Early detection can guide treatment to reduce complications like kidney or bladder damage. This test is particularly useful in endemic regions or for travelers returning with symptoms.

Short name

Schistosoma Antibody Test

Frequently asked questions

What does a positive result mean?
A positive result means your immune system has likely encountered *Schistosoma* antibodies, indicating past exposure. It doesn’t confirm an active infection but may prompt further testing or evaluation of symptoms.
Can this test detect an active infection?
No, this test primarily detects antibodies, which indicate past exposure rather than an active infection. For diagnosing current infection, other tests (like stool or urine exams) may be needed.
How long do antibodies stay in the blood?
Antibodies from *Schistosoma* exposure can remain in your blood for years, even after the infection has cleared. This is why retesting may be recommended if symptoms or risk factors persist.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy