Facebook ‘Fact Checks’ Scientific Piece Arguing Coronavirus Originated in Chinese Lab

Facebook is fact-checking posts that claim the coronavirus originated in a Chinese lab, a theory gaining traction in the scientific community—particularly after science reporter Nicholas Wade published a piece on Medium last week explaining why he believes the lab-leak theory is the most likely explanation.

Facebook is warning users that articles describing evidence for the theory are "Missing Context" and is steering them to a 2020 fact-check saying there is little evidence for a non-natural origin of the virus. Wade’s story is accompanied on Facebook by a link to an...