RE: Antibody levels drop over time = Tests required forever.27 Oct 2020 11:09
"How does this dial into ODX ?
So people will have immunity but not necessarily antibodies. And people who have had covid, may eventually have neither antibodies NOR immunity. Given the above, Am I right that a negative antibody test doesn't tell you ANYTHING about the person. They may have no antibodies but be immune, or have no antibodies and not be immune ?"
It dials into ODX as there will need to be longitudinal studies to confirm how long antibodies last in various cohorts. For example, there may be differences between naturally induced and vaccine induced antibodies. There may also be differences in antibody longevity between various vaccines.
We need to treat any claims around longevity with a certain level of caution, given that we are in the early stages of understanding this particular virus - and that the range of tests being used to measure antibodies at the moment are of varying quality internationally.