[textgel]

That we know of, just as we "Knew" these vaccines would effectively prevent transmissions and wouldn't have side effects.

[eropple]

They do effectively prevent transmissions, against the strains to which they were tailored. They still do a pretty good job against strains to which they were not specifically tailored. The problem is that not enough people have them.

The side effects that are able to be actually substantiated by credible sources have been generally quite mild and very, very rare.