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Schistosoma IgG Antibody (Serum) – Immunoassay

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

This blood test checks for antibodies to the parasite *Schistosoma*, which can cause infections like schistosomiasis. Antibodies indicate past or ongoing exposure.

Quick summary

["This test helps diagnose or monitor schistosomiasis, a parasitic infection spread by freshwater snails."]

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

Key facts at a glance

LOINC
25757-6
Short code
Schistosoma IgG Ser IA-aCnc
Synonyms
Schistosoma IgG Ser IA-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
CPT
82784
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 Is This Test Done?

Your doctor may order this test if you’ve traveled to regions with high schistosomiasis risk, have symptoms like fever, skin rashes, or organ issues (e.g., bladder, liver), or live in an area where the parasite is common. It can also help track treatment effectiveness.

What Does a Positive Result Mean?

A positive result suggests you’ve been exposed to *Schistosoma* parasites at some point. This doesn’t always mean you’re currently infected, but it confirms past or lingering exposure. Further testing may be needed to assess active infection.

What Does a Negative Result Mean?

A negative result means no detectable antibodies were found in your blood. This could mean you’ve never been exposed or the infection has cleared. However, exposure could still be recent or too early for antibodies to appear.

How Is This Test Performed?

A blood sample is taken from a vein, usually in your arm. The sample is sent to a lab where antibodies to *Schistosoma* are measured using an immunoassay (a lab test that detects specific proteins in your blood).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Schistosoma IgG Antibody

Frequently asked questions

What are the symptoms of schistosomiasis?
Symptoms may appear weeks to months after exposure and can include fever, fatigue, skin rashes, joint pain, or organ damage (e.g., liver, bladder, or intestines). Antibody tests help identify past exposure, but symptoms alone aren’t diagnostic. Consult your doctor if you suspect infection.
How does this test differ from other parasite tests?
Unlike stool or urine tests that detect parasite eggs, this test detects antibodies, which indicate immune response to past exposure. It’s useful for identifying indirect evidence of infection, especially in areas where eggs aren’t always found in samples.
Can this test be used for routine health checks?
No, this test is typically reserved for individuals at risk (e.g., travelers, residents of endemic regions) or those with symptoms. Routine screening isn’t recommended unless advised by a healthcare provider.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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