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Schistosomiasis Antibody, Serum (Qualitative/Quantitative) – Parasite-Specific IgG/IgE

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

This blood test detects antibodies against *Schistosoma* parasites, which cause schistosomiasis—a disease spread through contaminated freshwater. Antibodies develop after infection and may persist for years.

Quick summary

["This test helps diagnose or confirm past exposure to *Schistosoma* worms, often linked to travel or exposure in endemic regions."]

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

Key facts at a glance

LOINC
8019-2
Short code
S mansoni Ab Ser-aCnc
Synonyms
S mansoni Ab Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Matters for You

Schistosomiasis is a parasitic infection spread through contact with freshwater in regions like Africa, South America, and parts of Asia. If you’ve traveled to or lived in these areas, this test can help determine if you’ve been exposed to the parasite. Antibodies may appear weeks to months after infection and can indicate past exposure, even if symptoms are no longer present.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test involves a simple venipuncture procedure, similar to other blood tests. If you have a blood clot disorder or are on certain medications, let your provider know before the test.

What the Results Mean

A positive result suggests exposure to *Schistosoma* parasites, but it doesn’t always mean you’re currently infected. Antibodies can remain in your system for years. If you’re traveling to a high-risk area or experiencing symptoms like itching, skin rashes, or urinary issues, discuss your results with your doctor.

Common Symptoms of Schistosomiasis

Symptoms may appear weeks or months after exposure and can include skin rashes, fever, muscle aches, or digestive issues. In advanced cases, the infection can affect the bladder, intestines, or liver. Antibody tests are often used to confirm exposure before symptoms develop.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Role in Diagnosis and Monitoring

Short name

Schistosomiasis Antibody Test

Frequently asked questions

This test is primarily used to diagnose past exposure to *Schistosoma* parasites, especially in individuals with travel history to endemic regions or those experiencing unexplained symptoms. It can also help monitor long-term exposure in people at high risk.
A positive antibody test indicates exposure to the parasite, but it doesn’t confirm an active infection. If you’re experiencing symptoms like urinary pain, blood in urine, or persistent skin itching, your doctor may recommend additional tests or treatments.
How long do antibodies stay in the blood after infection?
Antibodies can persist for years after infection, sometimes even decades. They don’t always decrease over time, so a positive test may reflect past exposure rather than an active infection.
Can this test be used to diagnose an active infection?
No, this test is not designed to diagnose an active infection. If you suspect you have symptoms of schistosomiasis (e.g., urinary or bowel issues), your doctor may recommend a different diagnostic test, such as a stool or urine examination for parasite eggs.
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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