After getting one dose of the COVID-19 vaccine, some people are having trouble getting their second shot. Here's how to maximize the likelihood you'll get both doses, to be fully immunized.

Even when forced online by the pandemic, music therapy sessions continue to help patients in some ways talk therapy can't. "Music is this portal," says one therapist and COVID-19 long-hauler.

Tattoo artists are unhappy about a new ban on blue and green pigments in Europe, while scientists say the basic science of tattoo ink is still fairly mysterious.

Lab-grown brainlike organoids altered with an ancient gene began to look and behave differently. The experiments help show how the human brain has evolved.

Black Americans are getting vaccinated at lower rates than whites. A new push to send vaccines to community health centers is intended to help quickly bridge that gap.

The Food and Drug Administration is working on a playbook for how it could greenlight vaccine tweaks. Studies in hundreds of people, rather than tens of thousands, seem likely.

COVID-19 vaccines appear to work against the new coronavirus strains, though scientists are warily watching a variant first seen in South Africa. Vaccines may need updates to keep pace with the virus.

The Biden administration is promising 61 million rapid at-home tests by the summer. But critics say that's too few and way too late.

Guidance from the CDC on who should be prioritized to get the COVID-19 vaccine was meant to be flexible and inclusive. But "the attempt to have equity created more inequity," says one researcher.

I haven't seen my mother in over a year. I was going to visit in April to celebrate her 90th birthday but the pandemic put that on hold. Now that she's been vaccinated is it time for the birthday hug?