"Pollard said that vaccines may slow the process of transmission, with data indicating that people who are vaccinated and test positive seem to be shedding the virus for a slightly shorter period of time. However, given the circulation of the highly transmissible Delta variant vaccination wouldn’t stop spread altogether."
"Pollard explained that one of the strongest arguments for vaccinating children is to protect adults. However, he said that vaccinating children wouldn’t completely stop transmission and that there was an urgent need to ensure adults are vaccinated the world over."
So, yes, we should not have our hearts set on "herd immunity" as a magic bullet fix-it. However, high vaccination rates are still a worthwhile goal.
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u/pilotavery Aug 12 '21
Yes, but it is much less likely, and critical mass/herd immunity is based off of percentages.