The following tests are available:\r \r PCR test\r A PCR is a molecular test based on the detection of RNA for the SARS-CoV-2 virus by RT-PCR. This is currently the benchmark test for diagnosing the SARS-CoV-2 virus in the early stages of the disease. The molecular detection of the SARS-CoV-2 virus is very specific, so a positive result confirms the detection of the virus. A negative result does not always mean the virus is absent since it depends on the viral load in the sample. If a negative result is obtained for a patient suspected of being infected with the SARS-CoV-2 virus, it should be confirmed with a second test.\r \r Rapid antigen test\r This test looks for proteins, or antigens, found on the surface of the virus, to detect whether the person is infected at that moment in time. It provides essential information at a precise stage of the infection cycle when people are at greater risk of spreading the disease. It is therefore a useful tool for containing the spread of the virus. The turnaround time for results is very fast and they are available at the health centre where the test is taken.\r \r These tests are highly reliable and have been approved by the health authorities in many countries.\r \r In both cases, the sample is taken by nasal swab and there is no need to be tested on an empty stomach.\r \r Saliva test\r \r This test consists of amplification of the RNA for SARS-CoV-2 coronavirus from a saliva sample. You can take the sample for the test yourself without having to leave your home.   .\r \r  \r \r