The test needs to be assessed in combination with the symptoms shown. If you get a negative result but feel you have disease symptoms, it may be that you have not yet developed antibodies. Take the test again in 2 days. If you still haven’t developed antibodies and been healthy for 48h, you can go back to work according to current recommendations (Last updated by Public Health Agency of Sweden: 2020-03-12). Please note, your disease symptoms are probably not caused by COVID-19. Updated recommendations may come from the public health authority and should be followed.