CDC director says masks are more effective against COVID-19 than a vaccine. Months earlier, he said the opposite.

Hard to trust

CDC director says masks are more effective against COVID-19 than a vaccine. Months earlier, he said the opposite.
Director for Centers for Disease Control and Prevention Robert R. Redfield speaks during a hearing of the Senate Appropriations subcommittee reviewing coronavirus response efforts on Wednesday in Washington, D.C. (Photo by Anna Moneymaker-Pool/Getty Images)