Widespread COVID testing has revealed uncomfortable truths about medical tests: a test result is rarely a definitive answer, but instead a single clue. A result may be falsely positive or negative, or it may show an abnormality that doesn’t...
Widespread COVID testing has revealed uncomfortable truths about medical tests: a test result is rarely a definitive answer, but instead a single clue. A result may be falsely positive or negative, or it may show an abnormality that doesn’t...
Widespread COVID testing has...