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

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

This test detects antibodies to the parasite *Schistosoma*, which causes schistosomiasis—a disease spread through freshwater contact with infected snails and contaminated water. It helps identify past or current infection.

Quick summary

["This screening test checks for signs of infection by a parasitic worm that may affect your skin, organs, or bladder."]

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

Key facts at a glance

LOINC
100130-4
Short code
S mansoni Ab Ser Ql IB
Synonyms
S mansoni 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

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you’ve had recent exposure to freshwater with snails (common in tropical or subtropical regions), unexplained skin rashes, urinary symptoms, or symptoms like fever, joint pain, or fatigue. It’s also used in areas where schistosomiasis is common for routine screening.

What to Expect During the Test

A blood sample is taken from a vein in your arm. You may feel a slight pinch, but it’s usually over quickly. The test itself is quick and doesn’t require special preparation.

What the Results Mean

A positive result means your body has detected antibodies to *Schistosoma*, suggesting past infection. A negative result means no detectable antibodies were found at this time. Follow-up testing or additional questions may be needed if symptoms persist.

Common Symptoms of Schistosomiasis

Infection may cause early symptoms like itching, rash, or flu-like illness (e.g., fever, muscle aches). Later, it can affect organs like the bladder, intestines, or liver, leading to chronic issues like blood in urine, abdominal pain, or swelling.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Role in Diagnosis and Management

Short name

Schistosoma Antibody Screen

Frequently asked questions

How soon after exposure might I test positive?
Antibodies may take weeks to months to develop after infection. If you suspect exposure, ask your provider about timing—results may not reflect recent exposure.
What if I have a positive result but no symptoms?
A positive test alone doesn’t always mean active infection. Your provider may order additional tests (like a stool or urine exam) or confirmatory antibody tests to assess severity and guide treatment.
Can this test be used to monitor treatment?
Sometimes, repeated antibody testing is used to track response to treatment, but results can vary. Always discuss with your healthcare team about the best approach for your situation.
  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