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Originally Posted by Byte1
An antibody test will NOT work with these vaccinations.
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https://www.washingtonpost.com/lifes...antibody-test/
How about an antibody test to determine if the vaccine was effective?
The CDC discourages antibody testing for assessing immunity after getting the vaccine. In clinical trials, the Pfizer-BioNTech and Moderna vaccines were shown to protect people against the virus 95 percent of the time and 94 percent of the time, respectively. But that does not mean everyone who gets the vaccine would test positive for antibodies, Murphy said.
Commercial antibody tests may not be searching for the same antibodies that the vaccine triggers. Someone who has had the vaccine and is immune to the virus may still test negative for certain antibodies, Murphy explained.
Mutated virus may reinfect people already stricken once with covid-19, sparking debate and concerns.
In any case, Murphy added, antibodies are only part of a person’s immune system response. Some studies have shown that protective T cells, a white blood cell that helps protect against disease, have been elevated in some patients with covid, even though the patients had no detectable antibodies.
“After the vaccines, a lot people are going to get antibody testing — ‘Oh, I want to see if it’s working.’ It actually has very little correlation,” he said. “Many people will test negative on the antibody test, and that does not mean the vaccine didn’t work.”