A negative test result indicates that antigens from the virus that causes COVID-19 were not detected in your sample. However, If you have symptoms of COVID-19, and your first test is negative, you should test again in 48 hours since antigen tests are not as sensitive as molecular tests. If you have a negative result, it does not rule out SARS-CoV-2 infection. or infection with other pathogens; you may still be infected, and you may still infect others. It is important that you work with your healthcare provider to help you understand the next steps you should take.