Sell GMATE COVID-19 AG SALIVA ANTIGEN RAPID TEST KIT (RTK) best price

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.