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Monoclonal antibodies are laboratory-produced molecules engineered to serve as substitute antibodies that can restore, enhance or mimic the immune system's attack on cancer cells. They are designed to bind to antigens that are generally more numerous on the surface of cancer cells than healthy cells.
If the VCA-IgM is negative but VCA-IgG and an EBNA antibody are positive, then it is likely that the person tested had a previous EBV infection. If an individual is asymptomatic and negative for VCA-IgG, then that person has likely not been previously exposed to EBV and is vulnerable to infection.BV antibodies may be ordered when someone has symptoms suggesting mono but a negative mono test and when a pregnant woman has flu-like symptoms and the doctor wants to determine whether the symptoms are due to EBV or another microorganism.