Cactus Jack said:
Just know that some antibody tests, particularly at the blood donation center that I went to, do not detect antibodies produced by the vaccine. If you test negative it does not necessarily mean the vaccine was ineffective.
Don't really have a clear answer as to why.
Different types of antibodies. Different specificity of tests are needed.
The vaccines are a new type of vaccine, in that they do not contain a dead or attenuated virus for your body to learn how to attack. The vaccines are designed to teach your body how to attack a specific protein (Spike protien)the virus utilizes to attach to your cells and then replicate. So your body is only producing anti bodies that block or prevent the spike protein from attaching to the cell and then inserting the viral code into your cell to begin replication, and with out that replication the virus dies and is easily defeated by the bodies other immune responses.
The antibody test blood centers are using specifically targets the antibodies that are created from a full blown infection to defeat the virus, not just the spike protein.
Therefore it is not likely we would find results on the test we are utilizing. Not impossible but not likely. The test is designed for a different purpose.
