Search jobs 15-Dec-2020 Global Immunoglobulin Market – Insights An immunoglobulin (IG), also known as an antibody, is a protein produced mainly by plasma cells. The immune system uses IGs to neutralize pathogens such as pathogenic bacteria and viruses. The immune response of IG is highly complex and very specific. There are different types of IGs that differ in their biological features, structure, target specificity, and distribution such as IgG, IgA, and IgM. These IGs can be administered intravenously and subcutaneously for the treatment of various immunological an...