Choose test
Where to pass the test?
Test from the National Health Service
Loyalty program
Nurse visit
For clients
  • Screening 40+
  • Wallet
  • Gift a Wallet
  • Special offers
  • Partner offers
  • Preparing a child for tests
  • Doctors’ consultations
  • Cytological passport
  • FAQ
  • “Be Healthy” portal
Laboratory
  • News
  • About us
  • Equipment
  • Licenses and certificates
  • Leadership
  • Career
  • Contacts
For doctor
  • Information for doctors
Business
  • Tissue diagnostics
  • Cooperation with Synevo
  • Business Cabinet
  1. Home
  2. 2070. Cytomegalovirus (CMV), avidity of IgG antibodies

All test sections

Choose the category you’re interested in

TOP tests

What to check

Heart and blood vesselsSugar and metabolismThyroid glandImmunityInfectionsWomen's and men's healthTumor markersLiver and kidneysVitamins and trace elementsAllergensBlood type and Rh factorGenetic testsSkin, Hair, and Nails

Diseases

Cardiovascular diseasesDiabetes mellitus and metabolismThyroid gland and hormonal disordersInfectious diseasesAnemia and blood diseasesAllergies and immunological conditionsUrogenital infections and STDsTORCH infectionsPathology of pregnancyOncology and tumor screeningObesity and endocrine disordersHepatitis and liver diseasesGastroenterology and the gastrointestinal tractInflammatory and rheumatic diseasesRenal failure and kidney diseasesNeurological disordersTuberculosisWorms and parasitic infestationsGenetic diseases and mutation carriageCeliac disease and food intoleranceHealth of skin, hair and nails

For whom

For womenFor menFor childrenFor the elderlyWhen planning a pregnancy For pregnant womenBefore surgeryFor athletes and active peopleFor beautyFor vegetarians and vegans

Check-up

Women'sMen'sChildren'sFor the elderlyCardiovascularHormonalMetabolism and diabetesSkin, Hair and Nail HealthImmune and InfectiousOncologyVitamins and MineralsReproductive HealthAnnual PreventiveSpecializedAdvanced

Biomaterial

Blood ScrapingUrineFeces Sperm SalivaProstate secretSmear / Bacterial culturePlacenta / amniotic fluidBile / breast milkLiquorPathomorphologyCytology on glass

Panels

General clinicalThyroid panelPhosphorus-calcium metabolismReproductive panelHypothalamic-pituitary-adrenal axisCarbohydrate metabolismPrenatal diagnosticsKaryotypingOncology panelOther infectionsHepatitisTorch infectionsUrogenital infectionsCoronavirus SARS-CoV-2Parasitic infectionsHivLyme disease (borreliosis)Helicobacter pyloriTuberculosisAutoimmunological panelImmunological causes of infertilityCeliac diseaseRheumatological panelGeneral immunologyAntiphospholipid syndromeBacteriological panelCytological panelPathomorphological panelBiochemical panelVitaminsAnemiaCardiovascular disease markersAcute phase markersTherapeutic drug monitoringHeavy metalsAmino acids. Organic acidsGenetic panelScreening packagesAllergological panel

2070. Cytomegalovirus (CMV), avidity of IgG antibodies

2070. Cytomegalovirus (CMV), avidity of IgG antibodies

Turnaround time (days): 1

1145 ₴

Description

The test allows assessment of the timing of cytomegalovirus infection by measuring the maturity of IgG antibodies. It helps differentiate a recent infection (low avidity) from a past infection (high avidity).

Avidity refers to the strength with which an IgG antibody binds to the viral antigen. In the first weeks and months after infection, the immune system produces low-avidity antibodies. Over time, as the immune response matures, these antibodies are replaced by high-avidity ones – more stable and effective in controlling the virus. This characteristic is used in laboratory diagnostics. What the CMV IgG avidity test can determine? Low IgG avidity indicates a recent infection (within ≤3–4 months). This suggests a primary infection, which poses particular risks during pregnancy. High IgG avidity points to a past infection (more than 4 months ago), development of immune memory, and a low risk of fetal transmission during pregnancy. This test is especially important for pregnant women who test positive for CMV IgG, since IgG alone does not indicate whether the infection occurred before or during pregnancy. A primary infection during the first trimester carries the highest risk of congenital abnormalities in the fetus.

Important: In cases of low-avidity IgG, additional evaluation is recommended – including IgM testing, follow-up monitoring, or PCR testing to detect viral DNA in blood, urine, or saliva. If high-avidity IgG is detected, the risk to the fetus is minimal, even if IgM is positive (as IgM results during pregnancy are often false-positive).

When and who needs the test?

Who and when is testing recommended for?

  • Pregnant women with positive CMV IgG – to assess the timing of infection.
  • In cases of borderline or positive IgM results – to confirm or rule out primary infection.
  • For monitoring chronic CMV infection in immunocompromised patients.
  • Before planning a pregnancy – as part of the TORCH panel.

Biological material

  • Venous blood

Preparing for a blood test

In order to exclude factors that may affect the test results, we recommend to follow the preparation rules:

  • an important condition for laboratory tests is to take blood on an empty stomach;
  • 6-12 hours before the test, you should avoid eating, drinking alcohol, smoking, and limit physical activity. Drinking...

2070. Cytomegalovirus (CMV), avidity of IgG antibodies

1145 ₴

Information service

0 800 60 55 00

Free from mobile and stationary operators in Ukraine (except for the temporarily occupied territories)

Our social media

Media inquiries contacts

press@synevo.ua

About Us

About us
Career
News
Contacts

Customers

Choose test
Where to pass the test?
Get results
Special offers
“Be Healthy” portal

Legal information

Public contract
Loyalty program rules
Financial statements
Licenses and certificates
Tender
Legal conditions of special offers
Providing services to minors
Synevo, 2026