It finds infectiousness protection starts diminishing for patients two months after vaccinations.
Nonetheless, researchers found that diminishing vaccine effectiveness is restored following the booster vaccine.
This finding comes from a preliminary report of work that has not been certified by peer review. It was conducted jointly by the Technion Israel Institute of Technology and KSM, the Maccabi Research and Innovation Center and published on the MedRxiv website.
“These results suggest that the vaccine is initially effective in reducing infectiousness of breakthrough infections even with the Delta variant, and that while this protectiveness effect declines with time it can be restored, at least temporarily, with a booster vaccine,” it reads.
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