Vaccination slightly reduces the risk of transmission for individual interactions (at least for a while) but that just stretches the curve out a little. Since SARS-CoV-2 is now endemic throughout the worldwide human population (plus several other mammal species) we can all expect to be exposed multiple times throughout our lives no matter what we do. Fortunately the vaccines are very effective at preventing deaths.
> Vaccination slightly reduces the risk of transmission for individual interactions (at least for a while) but that just stretches the curve out a little...
That's a disingenuous statement though because vaccines also help prevent getting infected in the first place, which reduces transmission. This study seems to focus on vaccinated people who had a breakthrough infection. If you read the 'Interpretation' section:
> Vaccination reduces the risk of delta variant infection and accelerates viral clearance. Nonetheless, fully vaccinated individuals with breakthrough infections have peak viral load similar to unvaccinated cases and can efficiently transmit infection in household settings, including to fully vaccinated contacts.
The first sentence implies vaccination reduces the risk of getting infection. The second sentence is talking about vaccinated people with a breakthrough infection having similar viral load. Therefore saying "Vaccination slightly reduces the risk of transmission for individual interactions" is untrue because it ignores the infection prevention mechanism of the vaccine. It's a lot better than 'slightly'
https://www.thelancet.com/journals/laninf/article/PIIS1473-3...