Absence of evidence isn't evidence of absence. It's an inconclusive piece that seems to be trying to reassure the public that "Everything's fine!" even though no one knows if it's fine or not.
It kinda is when you're talking about public health epidemics though. There would be a ton of hospitalizations reported if a substantial number of people were getting it, which we don't currently see.
I'm aware of the hep A thing because it probably started in the homeless population in San Diego County, California. I happened to be homeless and running a blog called The San Diego Homeless Survival Guide, though I had been out of San Diego County for over two years.
I was contacted by some online rag and interviewed via email while on route to bring off the street. They misgendered me and made up a quote while cloth.
But it made me aware of the issue. So I then watched over coming months as reports of it spread further north to Los Angeles etc and eventually across the nation.
I blogged about it a few times but one dirt poor female blogger with no traction is not well positioned to essentially shout down a health crisis cover up by the US government.
Then Covid hit and people had bigger fish to fry.
I probably still have one blog post up somewhere about the quiet little Hepatitis A epidemic but I know I posted about it more than once and then redacted it more than once. I have a long history of doing that while trying to figure out this blogging thing. I do that less these days.
"Overton Window" plus who has credibility in the eyes of the public plus government goals of trying to avoid panicking people etc -- insert some Russian joke about The News isn't always true and The Truth isn't always news or something along those lines (a play on words, as I understand it, though I can count to ten in Russian and might know TEN more Russian words).