Selection of DBS card for anti-SARS-CoV-2 antibody detection

Dried Blood Spot (DBS) technology is well recognized as a cost effective, simple and reliable alternative to conventional liquid sampling methods for a wide range of applications. During the current pandemic, serological testing is emerging as a powerful solution to improve our understanding of COVID-19 exposure, transmission and immune response in patients previously infected with SARS-CoV-2. However, in the midst of the pandemic restrictions, large-scale testing is limited by the need for trained healthcare workers and quarantines with many patients advised to stay home. Ahlstrom Specimen Collection Cards allowing capillary blood self-sampling and simplified transport to laboratories for analysis could provide a reliable alternative. In this study, both DBS and liquid serum samples were tested using one serological assay to evaluate the usability of DBS with Ahlstrom BioSample collection cards for the detection of anti-SARS-CoV-2 antibodies.

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