Lessons from this year’s vaccine drive could help future prevention campaigns, says expert.

Many are taking steroids that could increase risk of COVID-related hospitalization, researchers say.

Though most healthcare personnel planned to be vaccinated, some were more likely to be reluctant.

From variants and vaccines to what lies ahead, CNN medical correspondent and University of Michigan alum shares insights.

Polls of people aged 14 to 24 about masks, distancing and more show the importance of focusing communications on protecting others.

Vast majority of teens and young adults say they’re willing or have gotten vaccinated; youth-oriented messaging will be needed to inform the rest.