The test detects the presence of antibodies, which are specific proteins made in response to infections. Antibodies can be found in the blood of those who are tested after infection. The antibodies detected by this test indicate that a person had an immune response to COVID-19, whether symptoms developed from infection or the infection was asymptomatic. The IgM antibodies are the first antibodies to be produced in the body in response to an infection, which is very useful for early diagnosis of infection. The IgG is detected from 8~10 days after infection, and since it is stably expressed for a long time, it is possible to predict not only the viral infection but also the timing of infection.

The SGTi-flex COVID-19 IgM/IgG test purports to be able to detect COVID-19 specific lgM & lgG antibodieswithin10 minutes,usingblood sample.It coverstheentire courseof infection and improves theoveralldiagnosisof COVID-19in acutephasesof illness