The serological test

The serological test is a blood test that can be used to determine whether Corona antibodies (IgG) are present in the blood. Antibodies are produced in response to a virus infection. The moment you are infected with a virus, the body will produce antibodies in response. After about two to three weeks, antibodies, for in this case SARS-CoV-2, are visible to us. Based on the serological test, we can determine whether you have had COVID-19.

Note: it is not yet certain that you are protected or ‘immune’ to COVID-19 after you have been infected.




On the basis of the serological test we can measure whether you have had the new corona virus. You can also take this antibody test yourself at home.

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What does a serological test cost?

The serological test costs EUR 49.00 when you test in our clinic. Do you opt for the self-sampling set where you can collect the necessary material at home? Then the test costs EUR 49.95.

The result of the test

You will receive the results of a serological test carried out in the clinic via a secure email the same day. Usually the results arrive around 10 p.m., this can also be earlier.

The results of an ordered home test for corona antibodies are available online within 48 hours after receipt of the return box sent by you. You can request the result with your anonymous code. So keep it safe!

Business testing?

Do you want to conduct business tests? Which can. You can purchase booking codes with which your staff can schedule an appointment themselves. For more information, visit our companies page, which you can reach via the button below.

Why Coronalab?

ISO certified

Microbe & Lab is ISO certified. Our CEO is a medical microbiologist. All tests are monitored by a doctor.

RIVM (Dutch CDC) accredited

Our laboratory is accredited by the RIVM for Sars-CoV-2 diagnostics.

Privacy and GDPR

The results are all sent exclusively via secure email in accordance with GDPR.

10 years experience

We have more than 10 years of experience in developing medical tests for infectious diseases.

What is a serological test?

A small amount of blood is taken during the serological test. This blood forms the basis for research into the presence of antibodies for the corona virus. If antibodies are present, we can say that contamination with COVID-19 has been experienced.

Coronalab uses the ELISA test with a very high specificity (> 98%). This makes the chance of false positive results very small. Our tests are analyzed in our own lab.

Why a corona antibody test?

A serological test is there to determine if you have had corona. This information can provide more peace and security. The test works optimally from about two weeks after the first day that you have been ill. Have you had complaints recently and do you want to know whether this was the corona virus? You can determine this with the serological test.

Is your test a self-test / home test?

No. Self-testing means that you can do the test YOURSELF at home and also get a result AT HOME (eg a pregnancy test is a self-test). In that case, no laboratory or doctor is involved. Such tests are not reliable enough. The IGJ prohibits self-tests that do not have CE certification in the Netherlands.

The Covid-HAD test is a laboratory test. You collect the material yourself (a few drops of blood) and send it to our laboratory for analysis. Our laboratory is ISO certified and expert employees carry out the test. The medical microbiologist checks the results and shares them with you via a secure portal.

How does home testing work?

Order test

Order the test easily, quickly and anonymously online. Note: keep your code safe, you will need it when requesting the results!

Collection of sample

If the test has arrived by post, you can take the test. Watch this video (Dutch) for instructions on how to take the test. Then return the sample to us.

Check in certified lab

In our RIVM validated and ISO certified lab, your sample is tested for the presence of SARS-CoV-2 antibodies. The doctor will use this to determine your COVID-19 status.

Anonymous result

Within 48 hours of receipt of your return box, you can request the results online in a secure and anonymous environment.

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Our test locations

View the overview of our test locations here. By clicking on a location you can view more information. You can plan a test directly in our booking tool.

More information about the availability of the tests and opening hours of the various locations? Then click here.


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The Hague Zeist
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Test at home whether you have corona antibodies

Do you want to test from home whether you have antibodies in your blood for the corona virus? This is possible with the Covid-HAD test. The Covid-HAD test is the same serological test as the one taken in the clinic.

You can take the test yourself, or have it done by a doctor / nurse at our location. Make an appointment for this in our booking tool.

€ 49,95

Frequently Asked Questions serological tests

Testing in the clinic

Why should I take a serological test?

With the serological test you are able to test whether you have had the corona virus. This information can provide more peace and security.

When will I get the results?

You will receive the results of a serological test taken in our clinic the same day. Usually around 10:00 PM, but this can also be earlier.

How can I make an appointment?

This can be done through our reservation system. Make an appointment at a test location of your choice.

Can I cancel my appointment?

Yes, this is possible up to 48 hours before your test appointment. You can do this yourself.

At which locations can it be tested?

There are now 11 locations in the Netherlands where you can take a test. View the overview on our test locations page.

How is the serological test taken?

We use a blood test to show if you’ve had Corona. For this, a few drops of blood are taken by our doctor / nurse.

In the laboratory we examine whether you have produced IgG antibodies against SARS-CoV-2. This way we can see if you have already had the virus.

Am I immune if my serological test is positive?

For the time being it is not 100% clear whether people who have had SARS-CoV-2 are also immune. We therefore simply advise people to adhere to the applicable measures of the RIVM.

Testing at home

Which tests can I order for at home?

You can order the blood test or serological test that determines whether you have had Corona at home. You can find the test here.

PCR tests are performed by healthcare professionals and are not suitable for home use.

Why should I buy a home test?

You can also go to our clinic for the serological test, but it may be easier and safer for you to collect the material at home. You will then receive our self-sampling kit so that you can do the sampling at home. You return the set to us. You only need to post it.

The actual test and analysis takes place in the laboratory. that doesn’t make our test a home test. Tests that give the results at home are as yet unreliable and prohibited.

Our laboratory is ISO certified and expert employees carry out the test. The medical microbiologist checks the results and shares them with you via a secure portal.

When will my order be shipped?

If you have placed your order before 10:30 pm, your package will be shipped the same day. With your order you will receive a track & trace code with which you can follow the package exactly.

Our partner DHL says it is very busy. It may therefore take a little longer before you receive the test. We try to ship everything as soon as possible. If you have any questions, please contact us.

Can I return the test?

If the products do not meet your expectations, you can return them within 7 working days, if unused and in original packaging. All return shipments must be made known to us in writing in advance. This is allowed by e-mail. You must state your full name and invoice number. Please note: the account number you provide for the refund must be the same as the account number from which you made the payment to This is to prevent possible fraud with refunds.

Steps to return:

  1. Send an email to and state what you want to return and your order number.
  2. You will receive a return form by email.
  3. Fill in the return form, print it and send it with the return shipment.
  4. Pay attention! You are responsible for ensuring that the item arrives intact, unused and in its original packaging.
When will I get the results?

We strive to give everyone a result within 2 working days of receipt at our laboratory, but we depend on PostNL’s speed, among other things.

Once your test has been received at our laboratory, the progress can be followed on our website with your unique code. So keep it safe!

Am I immune if my serological test is positive?

For the time being it is not 100% clear whether people who have had SARS-CoV-2 are also immune. We therefore simply advise people to adhere to the applicable measures of the RIVM.