IgG antibodies

IgG antibodies are a type of protein produced by the immune system in response to infections or vaccinations. They play a crucial role in identifying and neutralizing harmful invaders like viruses and bacteria. IgG is the most common antibody in the bloodstream, making up about 75% of all antibodies. It has a long lasting presence, providing ongoing protection by “remembering” past infections, which helps the body respond faster if the same threat returns. This makes IgG essential for both immediate and long-term immunity.