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> Given that the vaccine doesn't work to stop transmissions,

Nothing is perfect, but vaccination reduces transmission significantly:

> Two studies from Israel, posted as preprints on 16 July, find that two doses of the [Pfizer] vaccine ... are 81% effective at preventing SARS-CoV-2 infections. And vaccinated people who do get infected are up to 78% less likely to spread the virus to household members than are unvaccinated people.

https://www.nature.com/articles/d41586-021-02054-z



Important to note that both of these studies are on pre-Delta variant patient sets, so unlikely to represent current real world impact on transmission from vaccination. This [0] is the most recent I've seen, and it suggests the reduction in transmission against Delta is smaller and wanes rapidly, even with the mRNA vaccines.

[0] https://www.medrxiv.org/content/10.1101/2021.09.28.21264260v...




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