does a blood transfusion affect an mmr titer
An MMR Titer is a blood test to check immunity for Measles, Mumps, and Rubella. Infection with any of the 3 diseases may have serious implications to a personâs health. Titers are blood tests that check your immune status to vaccinations or diseases you may have received in the past. 2  If youâre titers results are positive, it means that you have adequate immunity to a particular infectious disease. 3  Therefore, you do not need to get that particular vaccine.