I think it's clickbait.
The CDC is investigating dogs.
Possible dog link to surge in child hepatitis cases being examined - Yahoo News
You say “I found the Original article at InvesmentWatchBlog.com. However I didn’t find any official sources issuing either a retraction or claiming that the kids were breastfed. I think it’s clickbait.”
Does that mean that you fully accept the “official” propaganda that these vaccines are “safe” and everyone should get vaccinated with multiple boosters?
So sad!
Such faith in “Official Sources” is quaint, and charming, but sadly misplaced at this point, I suspect.