Yersinia enterocolitica Antibody, Immunoassay (IgG)
This test measures the level of antibodies in your blood that your immune system produces in response to *Yersinia enterocolitica*, a bacteria that can cause foodborne illness.
["Detects past or current infection by *Yersinia enterocolitica* through antibody presence."]
Key facts at a glance
- LOINC
- 73664-5
- Short code
- Yersinia YadA Islt Ql
- Synonyms
- Yersinia YadA Islt Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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 doctor may recommend this test if you’ve had symptoms like diarrhea, fever, or abdominal pain that could suggest a bacterial infection, especially after eating contaminated food. It may also be used to confirm a suspected diagnosis in cases where other tests are inconclusive or if you’ve had exposure to *Yersinia* bacteria.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test is typically done in a lab and results may take a few days to a week, depending on the lab’s processing time.
What the Results Mean
Positive results indicate your immune system has likely encountered *Yersinia enterocolitica* in the past, meaning you may have had an infection. Negative results suggest no detectable antibodies, meaning either you’ve never been exposed or your immune system hasn’t produced enough antibodies to detect at this time.
Common Symptoms of Yersinia Infection
Symptoms may include sudden onset of diarrhea (sometimes bloody), fever, stomach cramps, nausea, and vomiting. Symptoms usually start 1 to 3 weeks after eating contaminated food and can last for several days. Some people may also experience joint pain or swollen lymph nodes.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
IgG Antibody to Yersinia enterocolitica
Frequently asked questions
This test helps diagnose or rule out *Yersinia enterocolitica* infection, particularly in cases where symptoms are unclear or when other tests are unavailable. It can also be useful for monitoring exposure in individuals with recurrent infections or those in high-risk groups (e.g., immunocompromised patients).
Can I get this test at home? No, this test requires a blood sample collected by a healthcare professional in a clinical setting. Blood tests are typically done in a lab or at a medical facility.
Does this test detect active infection or past exposure? This test detects antibodies, which indicate past exposure or infection. It does not directly measure active infection, so other diagnostic tests may be needed if you’re currently symptomatic.
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