Quantitative IgG antibody test for coronavirus 15.20 €

A one-time blood collection fee (6 €) is added to the price.

About coronavirus antibodies and diagnostics

In 2–3 weeks after contracting the coronavirus SARS-CoV-2, antiviral IgG type antibodies are formed in the blood, indicating the body’s response to the virus. Similarly, antibodies are formed in the body as a result of vaccination. According to research, the antibodies will be present in the body for at least six months.

The quantitative (QN) IgG antibody test for the coronavirus not only determines the presence of antibodies, but also defines their numeric level in blood, which allows to detect the level of the coronavirus antibodies present in the body at the moment of giving the sample.

A positive antibody test result indicates that a person has recovered from the infection caused by the coronavirus SARS-CoV-2, has a late-stage COVID-19 disease or has developed antibodies due to vaccination.

When to get tested?

It is recommended to take the quantitative IgG antibody test no sooner than three weeks after the onset of symptoms, a positive PCR test result or vaccination.

The IgG antibody test is not suitable for primary diagnosis of the coronavirus; in case of a suspicion that a person may have recently contracted the disease, a PCR test should be taken.

Where can I give a sample?

Antibodies are detected from venous blood, which means that it is not necessary to abstain from eating and drinking beforehand. Samples are taken based on the first-come, first-served principle at all of our sample collection points; the list is available HERE. We recommend to come in the afternoon, because then there will be less queue. It is mandatory to wear a face mask when you come to give a sample.

How do I get the result?

You will find the test results:

  • on the Patient Portal MINU.SYNLAB.EE – the results of your minor child can be seen by the parent who ordered the analysis
  • at the TESTI mobile app (download from TESTI.ME website) – you can also see the results of your minor children/dependents here
  • in the DIGILUGU.EE environment

In order to log in, you need an ID card, Mobile-ID or Smart-ID.
If necessary, you can receive the test result on paper from a SYNLAB sample collection point.


After receiving the result, you can download the trilingual certificate FREE OF CHARGE:

  • from the Patient Portal MINU.SYNLAB.EE/EN (under “Results/Certificates”) – the certificates of your minor child can be seen by the parent who ordered the analysis
  • at the TESTI mobile app (download from TESTI.ME website) – you can also see the certificates of your minor children/dependents here
  • in the DIGILUGU.EE environment – here you can download European Union digital COVID certificate that has been created for the EU citizens for simplifying mobility

An EU COVID certificate to confirm you have had COVID cannot be generated based on the presence of antibodies. In Estonia, the presence of antibodies can currently be used only to assess vaccination (whether to be vaccinated with one or two doses), in other cases, evidence of antibodies is not currently taken into account.

A travel document (passport, ID card) number is neccessary in order to get a coronavirus test certificate. You can enter the number during ordering a coronavirus test or, if necessary, change it later under “My account” on MINU.SYNLAB.EE main page.

If the child’s result cannot be generated via TESTi or minu.synlab.ee, please contact klienditugi@synlab.ee or the institution that took the sample from you in advance to order the child’s certificate, giving the child’s name, date of birth, country of residence and travel document number.

You can also obtain the certificate on paper at SYNLAB sample collection point for a fee of €3.

We issue certificates on paper:

  • Tallinn Veerenni 53a, 6th floor (Mon-Fri 7.30-15.30)
  • Töökoja 1 (Sat-Sun 9.00 – 16.00, lunch 12-12:30)
  • Tammsaare tee 104a (rear parking lot, mobile testing point) Mon-Fri 8-16:30 (lunch 12-12:30), Sat 9-16:30
  • Mere pst 10 (Europark EP29, mobile testing point) Mon-Fri 12:30–20:00 (lunch 15:30–16:00), Sun 09:00–16:30 (lunch 13:00–13:30)
  • Valukoja 7/2, 2nd floor (Mon-Fri 8: 00-16: 00 (lunch 12: 00-12: 30))
  • Linnamäe tee 3 (Lasnamäe Health Centre), 2nd floor (Mon-Fri 8: 00-16: 00 (lunch 12: 00-12: 30))
  • In Tartu, Pärnu, Narva and Jõhvi at the sampling point according to the opening hours
Interpretation of results

Reference values:

< 50.0 AU/ml – negative
≥ 50.0 AU/ml – positive (upper limit of determination is 40 000 AU/ml)

A subsequent negative antibodies result does not preclude an initial positive nasopharyngeal swab (PCR) result, as asymptomatic/mildly symptomatic people may not develop antibodies.

SARS coronavirus 2 IgG QN result is below the reference value

This means that there are not enough IgG antibodies for the coronavirus SARS-CoV-2 in the body to confirm that the patient has recovered from COVID-19 or to confirm the efficiency of vaccination. It cannot be excluded that the patient is in an early stage (weeks 1–2) of the disease, where antibodies have not yet formed. In addition, some people do not develop a measurable level of antibodies, e.g., patients who are asymptomatic, have only mild symptoms or immune deficiency. After recovering from the disease, the level of antibodies can decrease in time and this may also influence the test result. After vaccination, it may take weeks until antibodies are formed in blood.

SARS coronavirus 2 IgG QN result is above the reference value

A positive result means that you have IgG antibodies to the coronavirus SARS-CoV-2 and that you have either had COVID-19 disease or developed antibodies after vaccination. The result indicates the presence of immunity. Higher antibody values ​​are associated with a stronger immune response, but based on current knowledge we cannot predict the duration of immunity or the risk of re-infection based on antibody levels.

The Abbott SARS-CoV-2 IgG QN assay used in SYNLAB is presented in AU/ml (arbitrary units/ml). The results of antibody tests from different manufacturers are not directly comparable. To convert our test result to BAU/ml (Binding Antibody Units/ml) as suggested by WHO, the following equation should be used: BAU/ml = 0.142 x AU/ml.

About the virus

Coronavirus SARS-CoV-2 causes a viral disease of the lower respiratory tract called COVID-19, the symptoms of which are fever, cough, and difficulty breathing, among others. The virus is known to primarily spread through infected droplets but can also be transmitted via contaminated surfaces. Symptoms usually appear within 14 days but not all infected people develop symptoms. People who are infected but do not show any symptoms are asymptomatic and pose a great risk for spreading the virus.

The virus is particularly dangerous for the elderly and people suffering from chronic diseases as their immune system is weaker and may not cope as well with the disease.

More information: https://koroonatestimine.ee/en/for-patients/

Grand total:

15.20 €