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Echinococcus IgG Antibody (Serum) – Quantitative Immunoassay

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

This test measures the level of antibodies your body produces in response to infection by the Echinococcus parasite, which can cause hydatid disease (cysts in organs).

Quick summary

["This test helps diagnose or monitor parasitic infections linked to Echinococcus parasites."]

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

Key facts at a glance

LOINC
109953-0
Short code
Echinococcus IgG Msmt Ser
Synonyms
Echinococcus IgG Msmt Ser
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like abdominal pain, unexplained weight loss, or signs of organ involvement (e.g., liver, lungs, or brain). It may also be used to check for past exposure or monitor treatment progress in people with known parasitic infections.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. If you’re on blood-thinning medications, let your provider know before the test.

What the Test Results Mean

Positive results indicate the presence of antibodies, suggesting past or current exposure to the Echinococcus parasite. However, false positives can occur, so results should be interpreted by a healthcare professional alongside clinical findings.

Common Symptoms Linked to This Test

Symptoms of Echinococcus infection may include persistent abdominal pain, unintended weight loss, nausea, or swelling in affected organs. Some people may have no symptoms at all.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Echinococcus IgG (Serum)

Frequently asked questions

What does a positive result mean?
A positive IgG result strongly suggests past exposure to the Echinococcus parasite. This can help confirm a diagnosis of hydatid disease or guide treatment decisions. However, it does not rule out other conditions. Always discuss results with your doctor.
Can this test detect active infection?
This test primarily detects antibodies, which develop after infection. While it can indicate past exposure, it may not always show active infection. Additional imaging or clinical evaluation may be needed for diagnosis.
How often should I get this test?
Your provider will determine testing frequency based on your symptoms, medical history, or treatment plan. Regular monitoring may be recommended if you have a known parasitic infection or risk factors.
  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