Funny how that doesn't work

 The vaccine manufacturers do not claim that you will not get others sick -- only that your symptoms may be less severe than if you weren't vaccinated -- and even then there is some question, and whether people are being properly informed.

So why is this Catholic Church lying about it?

Confessions Are Now Available

for Those Who Are Vaccinated

Only those vaccinated may come to the Sacrament of Penance in order to protect yourself, and more importantly, to protect others in case you are asymptomatic and contagious. (emphasis added)

UPDATE:

Here is the screenshot of the page before:

The page has been "updated" to say this:

The faithful cannot, canonically speaking, be deprived of anonymous confession. It certainly doesn't make sense, if the worry is about infection, for those who are presumptively contagious to be relegated to face-to-face confession... just think about it. 

Of course, the vaccine manufacturers do not claim that it makes the person taking it not contagious. And it doesn't make sense to bring up anything about the effect of lowering "viral load" while simultaneously claiming that masks are essential to protect against the asymptomatic. The two are mutually exclusive ideas. 

In any case, even the most enthusiastic vaccine supporter does not think that it makes the situation inside a confessional safer -- unless that supporter is Catholic, apparently. Catholics seem to attribute all sorts of magic to the vaccine.