COVID Card Pilot Study to Detect Antibodies to SARS-CoV-2

"A drop of blood obtained by both finger-prick and venipuncture will be placed on the test card, which has been activated by the addition of diluent. Visual clumping of red blood cells (RBCs) will be seen within minutes if SARS-CoV-2 antibodies are present. Additionally, the COVID card is semi-quantitative, meaning that the yielded hemagglutination pattern will correlate with the concentration of antibodies in the serum.~A research team member will be present at bedside to provide their interpretation based on an established visual agglutination scoring system."