Starting Monday, every person in America 16 and older is eligible to receive a COVID-19 vaccine. Nearly 40% already have. Now public health officials will begin to focus more on those who have not. WHYY's Nina Feldman reports on the effort in Philadelphia, which is focused on racial equity. Two groups of people who are most likely to say they won't get a shot are Republicans and white evangelical Christians. Blake Farmer of member station WPLN in Nashville reports on outreach to those groups. In participating regions, you'll also hear from local journalists about what's happening in your community.Email us at considerthis@npr.org.