SARS-CoV-2 antibodies identification within the population is a key step to detect and be aware of who has been contaminated by the COVID-19 and produced antibodies in response of the infection. Those tests will able to show how many people have had the disease, including those whose symptoms were minor or even were asymptomatic.
With the immune reaction of the body to the infection, IgM and IgG are produced to fight the virus. As per different reviews and studies, those antibodies are generally detected in blood several days after the onset of the infection, generally detectable 10–14 days after infection although they may be detected earlier, and normally peak around 28 days after the onset of infection.
These tests will also help us better understand this new virus including knowledge on the duration and effectiveness of the immune response that have been developed by the human body.
Those antibodies tests can be used in clinical studies, population surveillance or by companies or corporation to optimally organise return to work after confinement.