Will Stone

After a year and a half of being COVID-cautious, a fully vaccinated health journalist thought he could finally travel and socialize this summer. The resulting illness didn't feel "mild" at all.

The delta variant is pummeling America's hospitals, taxing an already-depleted health care workforce. Once again, some states are facing the prospect of rationing medical care.

Worries about waning immunity and talk of COVID booster shots has some Americans checking their antibody levels to see if they're protected. But scientists warn blood tests don't tell the full story.

After a 90-day review, U.S investigators did not turn up any clear answer on whether the coronavirus hopped from an animal to a human — or somehow escaped from a lab.

A COVID-19 vaccine for children younger than 12 is not yet available, but research is well underway and the first shot for some kids in this age group is expected in the fall, doctors say.

People with weakened immune systems who already got two doses of the Pfizer or Moderna COVID-19 vaccines can now get a third shot. But exactly who is eligible? Here's what we know so far.

The FDA amended its emergency use authorizations for the Pfizer and Moderna vaccines to allow for an additional dose for some immunocompromised people.

The 110 million doses sent abroad puts the U.S. ahead of every other country making donations combined. But global health experts warn that billions of donated doses are needed to stop the pandemic.

A recent movie produced by Robert F. Kennedy Jr.'s anti-vaccine group tries to capitalize on the COVID-19 pandemic, the racial justice movement and renewed interest in the history of medical racism.

Many Americans are still making sense of new CDC guidance that vaccinated people no longer have to wear masks in most indoor settings.