On Apr. 15, 2020, Abbott announced the launch of its third COVID-19 test, a lab-based serology blood test for the detection of the antibody, IgG, that identifies if a person has had the novel coronavirus (COVID-19). Antibody testing is an important next step to tell if someone has been previously infected. It will provide more understanding of the virus, including how long antibodies stay in the body and if they provide immunity. This type of knowledge could help support the development of treatments and vaccines.