https://techcrunch.com/2021/03/15/facebook-to-label-all-covid-19-vaccine-posts-with-pointer-to-official-info/

Facebook will soon label all posts discussing the coronavirus vaccination with a pointer to official information about COVID-19, it said today.

It also revealed it has implemented some new “temporary” measures aimed at limiting the spread of vaccine misinformation/combating vaccine hesitancy — saying it’s reducing the distribution of content from users that have violated its policies on COVID-19 and vaccine misinformation; or “that have repeatedly shared content debunked as False or Altered by our third-party fact-checking partners”.