Tesla Inc.’s Elon Musk could have Covid-19. He could also be a high-profile example of accuracy concerns that have emerged around a new type of rapid tests that are starting to be used more widely.
That’s the early assessment of experts who have studied the rapid antigen tests that detect a protein on the surface of SARS-CoV-2. They caution that more information is needed, including how and why the tests were performed on Musk.
The controversy arose Friday, when Musk tweeted that he