As I'm not on FB I don't know what the latest scare tactic or misinformation campaign is going on.
I think it is similar to the news.  I am seeing  information shared as people want  updates on what is happening.  I have seen those who try to downplay it and say it isn't as bad as the flu and wonder what all the fuss is about.  I think now those same people are realizing the fuss is that we still have a chance of stopping another respiratory illness.
Then there are all the political posts.