The saliva test is an antigen test that detects proteins on the surface of the virus. A colouring in the test strip indicates the test result after 15 minutes. High reliability The test complies with the applicable European IVD Directive and is CE certified. This AllTest Covid-19 Ag test can detect the SARS-CoV-2 variant (SARS-CoV-2 VUI 202012/01) from the UK, South Africa and Brazil The manufacturer states a relative sensitivity of 90.1% and a specificity of over 99%. These performance characteristics have also been confirmed in a European study.