In healthy individuals immune globulins are made by plasma cells when exposed by an immunogen such as a virus. Immune globulins act as antibodies against an infection. They are made up of different classes and subclasses of molecules. The immune globulin used for therapeutic purposes is made from healthy human blood that has a high level of antibodies. Immune globulins are given to those with a weak immune system to strengthen or act as the body’s natural immune system. It decreases the risk of infection in the immunocompromised patients, who are unable to make antibodies themselves.
