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Schistosoma antigen (serum/plasma) – Parasite-specific antibody detection (qualitative)

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

This test detects antibodies in your blood that may indicate exposure to the parasitic worm *Schistosoma*, which can cause infections like schistosomiasis. It helps diagnose past or current exposure but does not confirm an active infection.

Quick summary

["This test checks for signs of past exposure to a parasitic worm that may affect your health."]

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

Key facts at a glance

LOINC
100143-7
Short code
Schistosoma sp 80kD Ab Ser Ql IB
Synonyms
Schistosoma sp 80kD Ab Ser Ql IB
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ib
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

What This Test Measures

The test looks for antibodies produced by your immune system in response to *Schistosoma* parasites. These antibodies can appear after exposure, even if you don’t have active symptoms. The method used is an immunoassay, which identifies specific proteins (antibodies) in your blood.

How the Test Works

Your blood sample is analyzed to detect antibodies linked to *Schistosoma*. If antibodies are present, it suggests you may have been exposed to the parasite, though symptoms could vary widely or not appear at all.

Why It Might Be Ordered

Doctors may order this test if you have symptoms like skin rashes, fever, or organ-related issues (e.g., bladder, liver) that could be linked to past exposure. It’s also used in areas where schistosomiasis is common for screening.

What to Expect Before the Test

No special preparation is needed. A blood sample is taken from a vein, similar to other routine blood tests. You may feel slight discomfort, but it usually doesn’t require rest afterward.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results indicate past exposure but do not confirm an active infection. Antibodies may fade over time, so repeated testing isn’t typically recommended unless symptoms or risk factors persist. This test is useful for surveillance in endemic regions or post-treatment follow-up.

Short name

Schistosoma Antibody (Qualitative)

Frequently asked questions

Does this test show if I currently have schistosomiasis?
No, this test only detects antibodies from past exposure. To check for an active infection, your doctor may use other tests like stool or urine exams for parasite eggs or a different antibody test.
Can I get this test at home?
No, this test requires a lab sample collected by a healthcare provider. Home tests for parasites are not standard for this specific antibody detection.
What if my test is positive but I feel fine?
You may have had exposure years ago without symptoms. Some people develop issues later (e.g., organ damage), so monitoring with a healthcare provider is important if you live in a high-risk area.
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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