No need for your </sarcasm> tag. The United States makes repeated claims linking childhood vaccines to autism.

https://www.factcheck.org/2026/08/trump-and-rfk-jr-repeat-fa...

Come now! It is clear that the sarcasm indicator wasn't suggesting that the government didn't really announce that. The sarcasm was in the invocation of governmental authority, which is thereby implied to be ill-founded and not worth listening to.