I’ll try to say it in a simpler way:
If you’re Catholic and you believe in following what some of your church leaders say, some leaders have already said it’s okay to get the vaccine.
If you’re not Catholic, you can decide for yourself.
Do you actually know any Catholics who give a rip what their “ leaders” say?
They make their own individual decisions on what is or is not sin.
Its a matter of conscience and not dogma.