The 82 year-old veteran government official and infectious disease expert will officially retire at the end of 2022.

Dr. Renee Wegrzyn will head ARPA-H, a new agency aimed at tackling ‘intractable diseases’ such as cancer and diabetes.

Holdouts are from all over American society, fueling experts’ advice that there is no one-size-fits-all vaccine message and that people need to hear from trusted sources.