Neutralizing IgG antibodies
Determination of neutralizing antibodies after vaccination
The publication by Eberhardt KE et al. (Evaluation of a new spike (S) protein based commercial immunoassay for the detection of anti-SARS-CoV-2 IgG, Microorganisms 2021 March 31; 9(4):733) proves that our IDK® anti-SARS-CoV-2 IgG ELISA (K 5004) achieves the highest sensitivity among S-protein based assays in the detection of anti-SARS-CoV-2 IgG antibodies after COVID-19 recovery. The assay correlates better with neutralization than the competition and detects even the lowest concentrations of neutralizing antibodies. In addition, internal validation studies have shown that the test is excellent for detecting an immune response after COVID-19 vaccination. Therefore, the IDK® anti-SARS-CoV-2 IgG ELISA is ideally suited for the quantitative detection of neutralizing antibodies after COVID-19 vaccination.