What is true regarding an immune globulin?

Immune globulin, also known as immunoglobulin, is a class of proteins that function as antibodies in the immune system. They play a crucial role in identifying and neutralizing pathogens like bacteria and viruses. Immune globulin can be administered as a therapy to boost the immune response in individuals with weakened immune systems or to provide passive immunity against specific infections. There are different types of immune globulins, such as IgG, IgA, IgM, IgE, and IgD, each serving distinct roles in immune defense.