Rapid Covid Test Accuracy
Rapid Covid Test Accuracy. While we're leaning more into rapid antigen tests and the government's making them available, the accuracy of the tests hasn’t changed. In late 2020, the rapid antigen test for covid appeared and could provide results in minutes. Overall sensitivity and specificity of at tests were respectively 63.5% (95% confidence interval (ci): They're more accurate in symptomatic people than asymptomatic people. Tests were most accurate when used in the first week after symptoms first developed (an average of 78% of confirmed cases had positive antigen tests).