No fasting required.

The Elisa / CLIA TEST is a serological test – it is obtained through a blood sample – that detects antibodies to the SARS-CoV-2 virus in a quantitative way. It provides reliable information on two values: IgG type antibodies (past infection) and IgM type antibodies (infection in acute phase).

This is one of the most reliable tests today to know if antibodies have been created against COVID-19 or not. If the results provide IgG antibodies, it is confirmed that the patient has a past infection; that is, they have had the disease at some point.