The Atlas Toxo IgG/IgM ELISA Kit allows qualitative and semi-quantitative detection of IgG and IgM antibodies against Toxoplasma gondii in human serum or plasma. Microplate wells coated with T. gondii antigens produce a colorimetric reaction proportional to antibody concentration, supporting the diagnosis of recent (IgM) or past (IgG) toxoplasmosis.