Skip to content

IgG Antibody to Yersinia enterocolitica (Serum)

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

This test measures the level of antibodies in your blood that your immune system produces in response to *Yersinia enterocolitica*, a bacterium that can cause gastrointestinal illness.

Quick summary

["Helps detect past exposure to the bacterium that may have caused infection."]

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

Key facts at a glance

LOINC
17777-4
Short code
Yersinia IgM Ser-aCnc
Synonyms
Yersinia IgM Ser-aCnc
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

What This Test Measures

IgG antibodies are part of your immune system’s long-term defense. If you’ve been exposed to *Yersinia enterocolitica* (a rare cause of foodborne illness), your body may produce these antibodies over time. This test checks for their presence in your serum to identify past infection.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you’ve had symptoms like diarrhea, fever, or abdominal pain—especially if you suspect food poisoning—but other tests didn’t confirm a bacterial cause. It’s also used in research or rare diagnostic situations.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample (usually from a vein in your arm) during a routine office visit or lab visit. The process takes a few minutes, and you can resume normal activities afterward.

What to Expect After the Test

You’ll receive your results from your healthcare provider. If antibodies are detected, it suggests past exposure but doesn’t confirm an active infection. Follow-up testing may be needed for further evaluation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

IgG Anti-Yersinia

Frequently asked questions

How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will discuss them with you.
Can I drink alcohol before this test?
No restrictions apply, but avoid heavy alcohol use if you’re concerned about potential interference with antibody detection.
Does this test diagnose an active infection?
No, this test only detects past exposure. For active infection, additional tests (like stool cultures) may be needed.
  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