Carolyn Y. Johnson

Author's posts

What you should know about coronavirus vaccines for younger adolescents

Now, that the Food and Drug Administration has cleared the first coronavirus vaccine for emergency use in children as young as 12, families are sure to have questions about the Pfizer-BioNTech shot and when it will become available.

FDA authorizes Pfizer coronavirus vaccine for adolescents 12 to 15 years old

Extending vaccine availability to children is considered key to achieving herd immunity, but could set off debates about vaccine mandates in school.

Maker of latest experimental vaccine will not seek authorization until July at the earliest

The Novavax coronavirus shot, which relies on a more traditional technology, could be a key tool in the global effort to fight the pandemic.

Pfizer-BioNTech vaccine offers strong protection against key variants of concern, real-world data from Qatar shows

The findings back up laboratory tests that had suggested the vaccine would protect against variants first identified in South Africa and Britain.

FDA appears poised to authorize Pfizer-BioNTech vaccine for adolescents by next week

Families and pediatricians have been eager for a vaccine to become available for children, particularly in advance of the next school year.

The race to untangle the secrets of rare, severe blood clots after Johnson & Johnson vaccination

Making sense of rare, possibly related adverse events after vaccination can be notoriously tricky, but in this case, U.S. health officials have a blueprint.

A vaccine study in college students will help determine when it’s safe to take masks off

A massive study unfolding at 20 college campuses aims to determine how well the Moderna coronavirus vaccine prevents vaccinated people from becoming unwitting carriers of the virus.

Your questions about coronavirus vaccines, answered

With three coronavirus vaccines receiving federal clearance, we answer your questions — from when you should get vaccinated to how they work and how they were made so quickly.

Coronavirus vaccines are coming for kids — but studies have to be finished first

The threshold for herd immunity almost certainly won’t be reached without providing vaccines to many of the approximately 75 million people under the age of 18.