Have you ever gotten inconsistent COVID test results, when one test result is negative but the next is positive? Dr. Eric Feigl-Ding, a public health epidemiologist and former Harvard professor, says that’s because you may not be swabbing correctly. One test, many outcomes: In a recent tweet, Dr. Feigl-Ding tweeted a picture of five at-home rapid COVID tests, all from the same brand and the same person. However, there were three different test results, and they seemed to come down to the method of swabbing. Anterior (inside) nasal swabs are the most common method of swabbing for COVID tests.

Source: CBC News September 27, 2022 03:32 UTC