3. If the test result is SARS-CoV-2 positive:  
-There is currently a suspicion of a SARS-CoV-2 infection;  
-Contact your doctor/general practitioner or the local health department immediately;  
-Please follow local guidelines for self-isolation;  
-Follow-up diagnostic procedure in accordance with local requirements will be required to confirm infection.  
4. If the test result is negative:  
-Continue to comply with all applicable rules regarding contact with others and protective measures;  
-There may be an infection even if the test is negative;  
-If you have symptoms similar to SARS-CoV-2 infection, repeat the test after 1 - 2 days, as the SARS-CoV-2 cannot be precisely detected in all phases of an infection.  
5. If the test result is invalid:  
Possibly caused by incorrect test execution;  
Repeat the test;  
If the test results remain invalid, contact your doctor or test center.  
Nasal swab:When collecting samples, blow your nose with tissue and carefully unpack the nose swab to avoid hand contact with the swab head. Then tilt the head slightly, hold the tail of the swab on one side of the nostril and enter, slowly 1-1.5 cm back along the bottom of the inferior nasal meatus (for subjects aged 2-14 years old, 1 cm) and rotate at least 4 times (residence time is not less than 15 seconds). Then use the same swab to repeat the same procedure for the other nasal cavity. The swab head is immersed in the extraction tube containing the lysate matched with the test strip.