A bispecific monoclonal antibody (bsMAb) is a type of antibody that is engineered to bind to two different antigens simultaneously. This type of antibody has the potential to be used in a variety of therapeutic applications, such as cancer immunotherapy, autoimmune diseases, and infectious diseases. BsMAbs can be used to target two different antigens on the same cell, or two different antigens on different cells. This allows for more precise targeting of the desired antigen, and can potentially reduce the side effects associated with traditional monoclonal antibody therapies.