[Replying to comment: "I was pushed into getting vaccinated by my family who constantly worried that I wouldn’t be allowed to go back to work if I didn’t... I hope that I’ve done the right thing"]

There’s no question that all of the vaccines materially cooperate with the grave evil of infanticide. In the case of someone who receives it now, particularly for free, the cooperation is pretty remote. Still, even remote material cooperation in grave intrinsic evil is usually sinful. The Congregation for the Doctrine of the Faith’s statement essentially said that taking the vaccine with the motive of protecting one’s health and others’ sufficiently mitigated that evil.

However, that statement was made in December of last year, before the vaccine’s effectiveness turned out to basically be a coin toss–like all previous coronavirus vaccines. The CDF was reckoning with an effectiveness rate of 98%. Subsequent information calls for re-doing the moral calculus.