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Supports the diagnosis of a infection with SARS-CoV-2.

The human organism needs some time (usually around 2 - 3 weeks) to produce antibodies against SARS-CoV-2 [7]. Antibody tests are intended to support the diagnosis of a SARS-CoV-2 infection and complement direct detection of the pathogen (PCR). Serology can also be used to collect epidemiological data, which is especially important in the case of this largely unexplored new infection.

  • Median seroconversion is 13 days after the onset of symptoms – half of the patients have no detectable antibodies within the first 12 days
  • The seroconversion rate is almost 100% 20 days after the onset of symptoms
ArminLabs will gladly ship blood-collection testkits to you

If you're interested in receiving our special blood-collection testkits, please write us an Email to or give us a call.
Patients or therapists from the UK can contact

NEW Symptom-Checklist for COVID-19 available - DOWNLOAD THE CHECKLIST

The COVID-19 Symptomchecklist is a supportive tool in the clinical diagnosis of the practitioner/therapist.
It does not replace a detailed clinical diagnosis.

The SARS-CoV-2-ELISA used by ArminLabs is highly sensitive and specific.

IgA and IgG antibodies have a sensitivity of 89 - 100%. Specificity of the IgA antibodies is 87.5 - 100%, and 83.5 - 97.5% [8] for IgG antibodies. The antigen (S1 domain) used in the test is particularly appropriate for the serological detection of SARS-CoV-2 antibodies as it is more specific than the N or full-length S protein please see the scientific paper “SARS-CoV-2 antibody responses in COVID-19 patients”, for further details, and the other references provided. The test is CE certified, IVD registered and validated.

The SARS-CoV-2 ELISA is therefore suited both to supporting the diagnosis of SARS-CoV-2 infections as well as distinguishing these from infections with other pathogens that cause similar symptoms.

Purposes that antibody testing can serve

In order to:

  1. Make a differential diagnosis to distinguish the infection from other acute pulmonary infections such as influenza
  2. Provide diagnostic assistance in the case of fresh infections
  3. Document current or past infection ~ 2 - 3 weeks after the onset of symptoms
  4. Track immune reactions in patients with a confirmed infection
  5. Possibly document potential immunity if a patient only has positive IgG antibodies

Please note that the test for IgA antibodies in particular is not suitable for screening asymptomatic subjects