Not Detected Means Negative. It does not mean youre not infected. A negative result does not mean that youve never had COVID-19.
It is possible for this test to give a negative result that is incorrect false negative in some people with COVID-19 meaning. If you have tested negative or not detected for COVID-19 learn how to monitor your health and protect others. A reference range is the value that the lab considers normal or typical for a healthy person.
This means that the virus was not found in your sample.
This suggests that you have not been exposed to COVID-19 or you have not developed enough antibodies to be detected by the test. A negative result does not mean that youve never had COVID-19. For example a healthy persons test result would not detect COVID-19 so the reference range would be negative or not detected. For COVID-19 a negative or not detected test result for a sample collected while a person has symptoms usually means that COVID-19 did not cause your recent illness.