For Whom Do The Covid Fact Checkers Really Work?

I recently came across two tweets that caught my eye.

Here is the first one from the CDC director:

Masks can help reduce your chance of #COVID19 infection by more than 80%.
Masks also help protect from other illnesses like common cold and flu. Wearing a mask- along w/ getting vaccinated- are important steps to stay healthy. #WeCanDoThis @HHSgov https://t.co/bfOV5VzBpq pic.twitter.com/6DGj8nwPgD

— Mandy K. Cohen, MD, MPH (@CDCDirector) November 5, 2021

And here is the second one, from a couple months back:

Posts continue to circulate online falsely claiming that COVID-19 survivors don’t need vaccines because of natural immunity. In fact, that protection is variable and not long-lasting, so vaccines are still recommended. Here’s our recent look at this claim. https://t.co/NHiepR24T1

— AP Fact Check (@APFactCheck) September 29, 2021

Together they got me thinking. What do they have in common? What do they tell us about the state of the public communication of science?

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