Monoclonal antibodies
The discovery of antibodies and the immune response has led to a number of medical uses. Where the antibodies are harvested from a single clone of B-lymphocytes these antibodies are called "monoclonal antibodies". This distinguishes it from the "polyclonal response" which is more common in the immune system. Hereptin as a cancer drug is one example and the other is a pregnancy test. If you could make drugs stick only...