Daniel Rhoads, MD, FCAP, explains why at-home COVID-19 tests expire and what kind of results you may get if you use one. “There are SARS-CoV-2-antigen-specific antibodies in the test — that’s what the test relies upon for its reliability. The antibodies in the test capture the antigen that’s part of the virus,” states, Dr. Rhoads. “So, those antibodies can go bad over time. They’re little pieces of protein, so they can deteriorate over time.”
For the full article click here: Can You Still Use an Expired COVID-19 Test?