Seattle-based Adaptive Biotechnologies has launched T-Detect Covid, the first clinical T-cell-based test to confirm recent or prior covid-19 infection. In real-world studies, this first-in-class test outperformed leading antibody tests. Knowledge of prior covid-19 infection is critically important for those who believe they may have been infected with the virus but have not been able to confirm a diagnosis. T-Detect is currently under FDA review for emergency use authorization (EUA).

“The impact of covid-19 has become its own public health crisis, with millions of people, like me, who are dealing with serious, long-term effects of this virus,” says Diana Berrent, founder, Survivor Corps, the largest grassroots movement in America dedicated to actively ending this pandemic. “A T-cell test is an important tool for people who want to know if they had covid-19 and may help them to understand and address ongoing health issues. It is important for patients to participate in ongoing research so that in the future, the same test may help answer questions about immunity to and protection from the virus or to a vaccine.”

Patients can order T-Detect Covid online at by answering a few eligibility questions through a secure portal. A virtual provider will authorize a prescription and patients can have their blood drawn by a mobile phlebotomist at their home or they can visit one of nearly 2,000 Labcorp patient service centers. Patients will receive an email notification when their results are available, and they can view them via a secure portal.

“T-Detect Covid is the first T-cell test for patients and the first product resulting from Adaptive’s TCR-Antigen Map collaboration with Microsoft,” says Adaptive Biotechnologies Chief Executive Officer, Chad Robins. “By mapping the human immune response to covid-19, we have developed a simple blood-based clinical test to help detect recent or prior infections from our T cells. This approach will be scaled for more accurate and early diagnosis of many infectious diseases, autoimmune disorders and cancer.” 

Until now, antibody tests have been the primary way to determine recent or prior covid-19 infection. T-cell tests take an entirely new approach to determine prior infection by looking at a different but equally important part of our immune system, the T cell. In the setting of covid-19, T-cell responses arise earlier than antibodies and persist in the blood for longer. 

Patients ordering T-Detect Covid have the opportunity to contribute to ongoing research to further the understanding of T cell-based immunity to covid-19. This is particularly important as scientists work to define immunity and establish correlates of protection to SARS-CoV-2, the virus that causes covid-19, resulting from natural infection or vaccination.

For more information, visit Adaptive Biotechnologies