COVID-19 - Antigen rapid Tests for saliva samples
Although the RT-qPCR technique is the official technique for the diagnosis of COVID-19, there are other methods available such as serological tests, rapid salivary tests and antigenic tests.
Antigenic tests are the most recent tests developed for the diagnosis of COVID-19. They are rapid tests designed to detect antigens of the SARS-CoV-2 virus, i.e. proteins present on the surface of the virus. The test is performed on a nasopharyngeal swab specimen as in the RT-qPCR tests. However, although the sensitivity of antigenic tests is lower than for RT-qPCR tests, they have the advantage of being faster (15-30 minutes) and less expensive. In addition, like serological tests, they do not require any special equipment.
Antigen rapid tests are based on the principle of immuno-chromatography as are serological tests. Antibodies directed against the SARS-Cov-2 virus antigens (usually the nucleocapsid protein or N protein) will detect the virus in the nasopharyngeal sample. A positive result with an antigen test will need to be confirmed by an RT-qPCR test.
We offer a rapid antigenic test for the diagnosis of COVID-19 validated for saliva samples. This type of sample is easier to obtain than nasopharyngeal and oropharyngeal swabs and can therefore be used to test the population more easily. Saliva samples can be taken with a swab (supplied in the kit) or a saliva collector.
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