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Schistosoma antibody, serum/plasma (qualitative screening)

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

This test checks for antibodies to the parasitic worms known as *Schistosoma*, which can cause infections called schistosomiasis. Antibodies may appear if you’ve been exposed to the parasite.

Quick summary

["A positive result suggests possible past or recent exposure to *Schistosoma* worms."]

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

Key facts at a glance

LOINC
6627-4
Short code
S mansoni Ab Ser Ql IA
Synonyms
S mansoni Ab Ser Ql IA
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
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 detects antibodies produced by your immune system in response to *Schistosoma* parasites. These antibodies are a sign that your body has encountered the parasite, though they may not always indicate an active infection. This screening is often used to identify exposure in areas where schistosomiasis is common.

Why It’s Done

Healthcare providers may order this test if you live in or have traveled to regions with high schistosomiasis risk, or if you have symptoms like skin rashes, itchy skin, or unexplained fevers. It can also be part of routine screening for certain populations.

What to Expect

A blood sample is taken from a vein in your arm. You may feel a slight pinch, but the process is quick. No special preparation is needed, though fasting is not required.

Possible Results

A positive result means antibodies were found, indicating possible exposure. A negative result means no antibodies were detected in this sample. Results alone do not confirm an active infection—further testing may be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Schistosoma Antibody Screen

Frequently asked questions

What does a positive result mean?
A positive antibody screen suggests you may have been exposed to *Schistosoma* parasites, but it doesn’t always mean you have an active infection. Symptoms like skin irritation, fatigue, or digestive issues may appear weeks or months later. Consult your doctor for further evaluation if you have concerns.
What does a negative result mean?
A negative result means no antibodies were detected in this sample, so no evidence of exposure was found at the time of testing. However, exposure could have occurred earlier, or the test may not have detected low antibody levels.
How often should I get this test?
This test is typically done as a screening tool, not a routine check. If you’ve traveled to a high-risk area or have symptoms, your doctor may recommend retesting or additional tests. Follow-up depends on your medical history and symptoms.
  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