Rapid results (IMAGE) University of Utah Caption When blood spots collected for the NanoSpot.AI rapid COVID-19 antibody test are mixed with a predispensed, dried reagent on the test card, the blood spot on the circle displaying the test result shows agglutination that indicates SARS-CoV-2 antibodies are present. Credit NanoSpot.AI Usage Restrictions non commercial with attribution License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.