Covid: Most popular Facebook link in US spread vaccine doubt - BBC News:

The paper alleged the report had not been shared because of fears that it would "look bad for the company". The most-viewed link was an article published by a mainstream US newspaper reporting that a doctor had died two weeks after getting a Covid-19 vaccine. The link attracted nearly 54 million views.

The first quarter report also revealed that the 19th most popular page on the platform belonged to the Epoch Times, which has been accused of spreading right-wing conspiracy theories.