The CDC is describing the Delta variant as more contagious than the 'chickenpox' and is now saying indoor mask wearing needs to return. President Biden also announced new guidelines on federal employees regarding vaccinations. FOX’s Trey Yingst speaks with Dr. Marty  Makary, of the Johns Hopkins School of Medicine and author of ‘The Price We Pay: What Broke American Health Care and How To Fix It’, about these new guidelines and how effective can they be.

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