Two testing experts explain the latest data on how well the assays perform
The following essay is reprinted with permission from The Conversation, an online publication covering the latest research.
We’re part of a team at UMass Chan Medical School that has been studying COVID-19 molecular, or PCR, and antigen test performance over the past two years. During this time, we’ve helped multiple companies generate the data needed to move their products through the Food and Drug Administration’s Emergency Use Authorization process and into commercial development.
At-home tests and the omicron variant When the omicron variant emerged in late November 2021, scientists quickly responded to determine how PCR and rapid tests performed against this new variant. The role of rapid antigen tests During that time, our group was working on a study examining the performance of over-the-counter tests in the general population. We used data from this study to look at the performance of these tests both before and after omicron became the dominant variant in the United States.
Previous research by our study team and others suggests that over-the-counter tests are more likely to detect an infection among people who are actively contagious. One question is whether people will report over-the-counter tests to health departments. We conducted several studies where people signed up using their smartphone, received tests in the mail and took and reported tests via a smartphone app.
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