A fourth shot may not offer much more protection against catching Omicron, an early Israeli study suggests.
Briefly

from Nytimes2 years ago
JERUSALEM - Preliminary results from a small Israeli study examining the effects of a fourth coronavirus vaccine dose suggest that despite an increase in antibody levels, the additional dose a few months after a third shot may not do much more to prevent infection with the Omicron variant.
Read at Nytimes
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