More than half of adults in the U.S. (55%) say they’ve already gotten one dose of Covid-19 vaccine or they’re eager to get one as soon as they can, an increase in acceptance from January (47%), a new poll reports. About 1 in 5 people are waiting to see how the vaccine rollout goes, but don’t rule out vaccination. Another 1 in 5 people are more reluctant: 7% would get vaccinated only if required by work, school, or some other activity, and 15% say no to vaccine under any circumstance. The increase in eagerness spans all demographic groups, but Black adults and young adults under age 30 were most likely to say they want to wait and see.