A COVID-19 IgG antibody test measures the level of immunoglobulin G (IgG) antibodies specific to the SARS-CoV-2 virus, which causes COVID-19. IgG antibodies are produced by the immune system in response to infection or vaccination and typically appear several weeks after exposure. **Key Points:** - **Detection of Past Infection:** Elevated IgG levels indicate a past infection with SARS-CoV-2, suggesting that the individual has been exposed to the virus and developed an immune response. - **Assessment of Immunity:** The test can also help assess immunity status, though it does not confirm current infection. - **Vaccine Response:** It may indicate the immune response following vaccination. The IgG test is used for understanding past exposure, monitoring immune responses in vaccinated individuals, and guiding public health and clinical decisions.

We provide blood tests in Noida, Gurgaon, Faridabad, Delhi, Indirapuram, Ghaziabad, Greater Noida, and Greater Noida Extension(west).