Doug B
Footballguy
Reading between the lines below (no study linked or cited) ... it looks like the benefit was reckoned from the small end of the telescope. Not so much extra benefit from a fourth shot as making up for the waning benefits of the third shot:Boosters approved for 50+ but is there even any data showing the benefit?
But for those over 50, determined to be a vulnerable age group, officials at the Food and Drug Administration and Centers for Disease Control and Prevention have decided the data on waning immunity justifies making another shot available four months after the first boost. And while anyone who meets that criteria can now get another booster, CDC Director Rochelle Walensky said it was "especially important" for those 65 and older and those 50 and older with underlying medical conditions.
EDIT: Same ABC News link as above -- Dr. Fauci here is likely not citing his own personal research, so I'm curious from where he derived the bolded below. Not that he made it up out of thin air, but would still like to see the original research:
Dr. Anthony Fauci, chief medical adviser to the White House, has said he expects additional boosters would "reconstitute" people back to the maximal level of antibodies, rather than boost people higher than their previous immune responses from any of the earlier shots.
But he said the body's B cell and T cell response, which have more impact on the duration of immunity, may incrementally be increased with each additional boost.
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Not at all. But I guess that depends on what your perceived purpose of the vaccine is.