Service Providers for IgG
IgG (Immunoglobulin G) is the most abundant antibody in the blood and extracellular fluid, playing a vital role in long-term immunity and pathogen defense. It is produced after exposure to infections or vaccination, providing lasting protection by neutralizing pathogens and enhancing their clearance by immune cells.
IgG is divided into four subclasses (IgG1, IgG2, IgG3, IgG4), each with specialized functions. Elevated IgG levels may indicate chronic infections, autoimmune disorders, or inflammatory conditions, while low levels can point to immune deficiencies or certain genetic conditions.
Doctors measure IgG levels through blood tests to diagnose immune system issues, monitor chronic diseases, or evaluate vaccine efficacy.