Though COVID-19 has killed almost twice as many Black Americans as whites, Black people are the least likely racial group to say they're eager to receive the vaccine as soon as it's available to them.

Americans with excess weight and obesity have been hit hard by COVID-19. Now there is reason to believe they may not get the same protection from the vaccines.

Early numbers show that people from racial and ethnic minorities have lower vaccination rates. Lack of internet access could be a reason.

Getting a vaccine is proving difficult for many older people now, but the mad rush for the vaccine won't last long. Many people don't want to get one at all, and that will impede herd immunity.

Getting a vaccine is proving difficult for many older people now, but the mad rush for the vaccine won't last long. Many people don't want to get one at all, and that will impede herd immunity.

A biologist explains what proteins do in viruses, how they interact with human cells, how the vaccine delivers mRNA into the cell and how antibodies protect us.

Two pharmacists involved in COVID-19 vaccine preparation explain the role pharmacists are poised to play in expanding vaccine access.

Massive vaccine distribution efforts take a lot of coordination. The rollout of the Salk polio vaccine in the US in 1955 holds lessons for those delivering COVID-19 shots today.