Schistosoma antibody titer (serum/plasma)
This test measures the level of antibodies your body produces in response to infection by *Schistosoma*, a parasitic worm that can cause chronic inflammation and organ damage. Antibodies indicate past or current exposure to the parasite.
["This test helps diagnose or monitor schistosomiasis, a condition linked to parasitic worm infection."]
Key facts at a glance
- LOINC
- 100129-6
- Short code
- Schistosoma Ab Titr Ser HA
- Synonyms
- Schistosoma Ab Titr Ser HA
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ha
- 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 Is Done
Your healthcare provider may order this test if you have symptoms like skin rashes, fever, abdominal pain, or unexplained fatigue—common signs of schistosomiasis. It may also be used to confirm a diagnosis in people with risk factors, such as exposure to contaminated freshwater in endemic regions.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, typically drawn from your arm. The sample is sent to a lab for antibody detection using an immunoassay method.
What the Test Results Mean
A positive result means your immune system has detected Schistosoma antigens, suggesting past or ongoing infection. The titer level (antibody concentration) can help assess severity or track treatment response, though it does not directly measure parasite burden.
Common Symptoms of Schistosomiasis
Symptoms may appear weeks to months after infection and include skin itching, flu-like illness, digestive issues (e.g., diarrhea), or organ damage (e.g., liver or bladder problems). Antibody tests are not used to diagnose acute symptoms but help confirm chronic infection.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Schistosoma antibody titers are critical for diagnosing chronic schistosomiasis, particularly in regions where the parasite is common. High titers may indicate active infection requiring treatment, while low or declining titers could suggest successful parasite elimination. This test is not a substitute for parasite detection (e.g., stool or urine exams) but complements diagnostic workups.
Short name
Schistosoma IgG Antibody Titer
Frequently asked questions
What does a positive result mean?
Can this test detect acute infection?
How often should I get this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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