(COVID-19) ANTI-SPIKE IgG ANTIBODY QUANTITATIVE

The COVID-19 Anti-Spike IgG Antibody Quantitative test is a blood test that measures the quantity of IgG antibodies directed against the spike (S) protein of SARS-CoV-2, the virus that causes COVID-19. These antibodies are produced by the immune system following COVID-19 vaccination or natural infection. By providing a quantitative measurement, the test helps assess the body’s immune response and the development of antibodies against the virus.

This test is commonly recommended to evaluate the immune response after COVID-19 vaccination and to assess antibody development following recovery from SARS-CoV-2 infection. A blood sample is collected for analysis, and the results should be interpreted along with the individual’s vaccination history, previous COVID-19 infection, and overall clinical condition. While the presence of Anti-Spike IgG antibodies indicates an immune response, the test does not determine complete protection against future COVID-19 infection. It serves as a valuable tool for monitoring post-vaccination immunity and supporting clinical and research evaluations.