Monoclonal antibodies are laboratory-made molecules designed to mimic the immune system's ability to fight off harmful pathogens like viruses and bacteria. They are created by cloning a single type of immune cell, which produces identical copies, or "monoclonal" antibodies. These antibodies can target specific proteins on the surface of cells, making them useful in treating various diseases, including some types of cancer and autoimmune disorders. In recent years, monoclonal antibodies have gained attention for their role in treating infections, such as those caused by the SARS-CoV-2 virus. By binding to the virus, these antibodies can neutralize it and help the body mount a stronger immune response. This innovative approach has revolutionized treatments and provided new hope for patients worldwide.