Updated 9PM PST March 17: Facebook says it has fixed the bug and all posts are restored. That may not be completely accurate, however, according to one source.
Facebook and other tech companies are working hard to curb misinformation on their platforms about the emerging COVID-19 or Coronavirus pandemic.
Maybe too hard.
“Facebook is blocking COVID-19 posts from fact based sources,” a Facebook friend who noticed it told me. “Facebook is hiding these posts. At the time of viral pandemic this shouldn’t be happening.”