Covid-19 Antigen Rapid Saliva Test

Positive Result
If you see two red lines by C and T regions, it is a positive result. The lines can be distinct or faint. You are tested Covid-19 positive.

RT-PCR test is still required for a confirmation of a Covid-19 case. You are advised to seek medical attention immediately even though you might have no symptoms

Do follow the current SOP given

Negative Result
If you see one red line by C, and no line by T, it is a negative result.

• You probably do not have Covid-19. However, you are advised to continue monitoring for symptoms if you suspect you might be exposed to the virus as there is a chance for a false-negative result
• If you develop symptoms later on, you are advised to do a RT-PCR test as confirmation

Invalid Result
If you do not see any lines, or one line by T, it is an invalid result. The test did not work

• You will need to do another test with a new test kit.

The RTK-Antigen Test is a screening tool, not a diagnostic tool!

1. This test can only detect SARS-CoV-2 antigen in human saliva only, not other specimen.

2. If the procedure is done incorrectly, it may cause inaccurate results.

3. False negative results happen if:

• The concentration of antigen in a specimen is below the detection limit of the test.
• The specimen was not collected or transported properly.

4. Positive results do not rule out co-infections with other pathogens.

Therefore, due to its limitation in detection range and sensitivity, RTK-Antigen test is used as a screening test and RT-PCR is used as confirmatory test to define a COVID-19 case.