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![An illustration shows spiky antigens studding the virus's outer coat. Tests under development that look for these antigens might be faster than PCR tests for diagnosing COVID-19, proponents say. But the tests might still need PCR-test confirmation.](https://woub.org/wp-content/uploads/2020/04/antigen-1-d7592dd81bdd50f7f6fbf7b8adfa52b0859e4dcf-e1588260864150-900x422.jpg)
A Next-Generation Coronavirus Test Raises Hopes And Concerns
By: Rob Stein | NPR
Posted on:
An antigen test could be quick, and much simpler and cheaper than the PCR tests now used to spot people infected with the novel coronavirus. But some scientists worry about an antigen test’s accuracy.