[logicchains]

>Not giving these people the shots would have been immoral, it was already clear that they were effective and safe.

It was not clear that they were long-term safe; there was not enough long-term data yet to discover this. And by unblinding, they made it very hard to gather such data.

Now that we have some such data, we see that indeed there are some non-trivial long term risks, such as doubling the risk of blood clotting in the eyes: https://www.nature.com/articles/s41541-023-00661-7 .

[kadoban]

> Now that we have some such data, we see that indeed there are some non-trivial long term risks, such as doubling the risk of blood clotting in the eyes

Doubling a miniscule risk. Even if true, this is orders of magnitude less consequential than the benefit gained by giving people the vaccine, instead of maintaining the blind group.