Early in 2020 alternative media discussions that COVID may have leaked from a lab were ruthlessly "fack-checked" and censored from social media for misinformation. Now that we know more these claims have become accepted as a very real possibility.
It seems lots of emerging stories should carry that label.
As politi-facts put it:
"There is no evidence that the coronavirus was made in a lab. The overwhelming consensus among public health experts is that the virus evolved naturally."