Skip to content

Epstein-Barr Virus Antibodies, Serum

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

This test measures antibodies your immune system makes against Epstein-Barr virus (EBV) in a blood serum sample. It helps show whether you have been infected with EBV and whether the infection is recent or from the past.

Quick summary

["EBV antibody testing helps determine if you have had or are currently having an Epstein-Barr virus infection."]

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

Key facts at a glance

LOINC
109938-1
Short code
EBV Ab Msmt Ser
Synonyms
EBV Ab 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
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 Is Being Tested

The test looks for different antibodies directed against Epstein-Barr virus, including types that appear early in an infection and types that persist long-term. Measuring these antibodies together helps your doctor interpret your immune response to EBV.

Why This Test Is Done

Your doctor may order this test if you have symptoms such as prolonged fatigue, fever, sore throat, or swollen lymph nodes, or if mononucleosis is suspected. It can also help clarify confusing results when other EBV tests are unclear.

How the Sample Is Collected

A small blood sample is drawn from a vein in your arm and the serum is separated for testing. The procedure is quick and usually causes only minor discomfort.

How to Prepare

In most cases no special preparation is needed. Follow any instructions your healthcare provider or laboratory gives you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

EBV Antibody Panel

Frequently asked questions

Does a positive result mean I currently have an infection?
Not necessarily. Some EBV antibodies stay positive for life after an infection, so results must be interpreted together with the specific antibody types and your symptoms.
Do I need to fast before this test?
Usually no fasting is required, but follow any instructions given by your provider or the laboratory.
Can this test tell how long ago I was infected?
It can help estimate whether an infection is recent or from the past by showing which antibody types are present, but it cannot give an exact date of infection.
  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