I was focusing on general information in an effort to ease concerns, and the intention isn't to debate, just to comment that it's time we take a broader look.
To your point though, I'll address the study in an effort to continue to reduce concerns.
There are several issues with that study, however let's go bigger picture and let's presume the reduction in transmission per the numbers they provide are accurate, which are shown at 36% unvaccindated to 28% vaccinated. Now it is unreasonable to expect a perfect study, however that also means that the study must also be analyzed for wh