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Adenovirus IgG Avidity

Price3.100 RSD
Result in8 days
SampleVenous Blood
PreparationNot required
Adenovirus IgG Avidity test, IntroLab laboratory Belgrade Written byDr. Igor Švonja, MD

Published: Updated:

The Adenovirus IgG Avidity test, available at IntroLab in Belgrade, is a laboratory procedure used to evaluate the strength of the bond between IgG antibodies and adenovirus in the body. This test is essential for determining the stage and duration of an adenovirus infection.

What is Adenovirus IgG Avidity?

Avidity measures the overall strength of the bond between antibodies and antigens. For adenovirus, IgG antibodies attach to the virus to neutralize the infection. By testing the avidity of these IgG antibodies, it’s possible to gain valuable information about the stage and duration of the infection, as bond strength increases as the infection advances.

Why is this test done?

The test is used to diagnose adenovirus infections, especially in cases where symptoms are unclear, or when it is challenging to differentiate between an acute and past infection with standard serological tests.

When is Adenovirus IgG Avidity tested?

Adenovirus IgG avidity is typically tested when symptoms indicative of adenovirus infection are present, such as:

  • Fever
  • Sore throat
  • Red eyes
  • Cough
  • Gastrointestinal symptoms

This test can also be utilized to monitor the progression of the infection and the effectiveness of treatment.

How are the results interpreted?

Results are interpreted according to the laboratory’s reference values. Typically, lower avidity levels indicate a recent infection, while higher levels suggest an infection that occurred weeks or months ago. A doctor should interpret the results, considering the patient’s overall clinical condition.

Preparation for the test

No special preparation is needed for this test. Patients can eat and drink as usual before the test unless otherwise directed by their doctor.

Analysis specifics
Various methods are used to measure adenovirus IgG avidity, including Immunofluorescence Assay (IFA) and Enzyme-Linked Immunosorbent Assay (ELISA). These methods are highly specific and can detect even small quantities of antibodies. The choice of method depends on the laboratory’s protocols and available resources.

Sample and preparation: Adenovirus IgG Avidity

Sample
Venous Blood
Sampling
Blood Draw
Result in
8 days
Preparation
No special preparation is required.
Category
Immunology

Frequently asked questions

What does a positive adenovirus IgG mean, and why is an avidity test done?

Positive adenovirus IgG antibodies show that the body has been in contact with adenovirus, but on their own they do not say when. The Adenovirus IgG Avidity test measures how strongly IgG antibodies bind to the virus, a bond that strengthens as the infection progresses. Lower avidity usually suggests a recent infection, while higher avidity suggests an infection from weeks or months ago. The test is used when it is hard to tell an acute infection from a past one. At IntroLab laboratory it costs 3,100 RSD, and the result is interpreted by a doctor.

Which method is used to measure adenovirus IgG avidity?

Adenovirus IgG antibody avidity is measured with serological methods such as ELISA (enzyme-linked immunosorbent assay) and immunofluorescence assay (IFA), which are highly specific and detect even small amounts of antibodies. At IntroLab laboratory the Adenovirus IgG Avidity test is done from a venous blood sample, with no special preparation, and results are ready in 8 days. The result is interpreted against the laboratory’s reference values and is always assessed by a doctor, together with symptoms and other findings.

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