Mr. Friedman writes:
"At a time when we desperately need to be guided by the best science,
Trump’s daily fire hose of lies, and his denunciations of anything he
doesn’t like as 'fake news,' has contributed mightily to the loss of our 'cognitive immunity' — our ability to sort out truth from lies and science from science fiction."
https://www.nytimes.com/2020/05/05/opinion/coronavirus-us-immunity.html