COVID-19 antibody test and vaccinations

The Scanwell COVID-19 antibody test detects IgM and IgG antibodies to spike and nucleocapsid protein from the SARS-CoV-2 virus. While we are still learning about the new COVID-19 vaccines, it does appear that most people using our antibody test will test positive after vaccination. In some cases, it may take up to 2-3 weeks after the second dose for two-shot vaccines (i.e. Pfizer or Moderna). Please note that the test cannot distinguish between antibodies from a natural infection vs vaccination and at this time there is insufficient evidence to conclude how the presence/absence of antibodies relates to protection from infection. Please complete an antibody test once per month and indicate in the daily survey when you received your COVID-19 vaccine to help the researchers with tracking. 

Antibody levels naturally decline over time and once they decrease below the test's limit of detection it will lead to a negative result. Please note that there is insufficient evidence at this time to conclude what this means in terms of protection from infection. Protection from viruses is a complex subject and just measuring two antibodies will not provide a complete picture (it doesn't measure T cells, for example). As a reminder, our test is for research purposes only and should not be used to make clinical decisions or change how you keep yourself safe and healthy.

If there are any additional questions or concerns, please send us a message using the Contact form or email us at support@scanwellhealth.com.

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