How long does immunity last after an infection? Are rapid tests always accurate? How often is a booster in order? In this installment of our FAQ series, we look into questions about "COVID time."
The special counsel prosecuting Donald Trump wants the Supreme Court to decide whether Trump enjoys absolute immunity from election interference charges.
Up to 50% of Europeans died from the plague. Now a new study shows that those who lived had a protective gene mutation they passed on to bolster immunity — but it comes at a cost.
Some countries are moving ahead with plans to offer a fourth dose of COVID-19 vaccine. But studies are raising questions about the potential advantages of this extra booster.
That's how some scientists describe the findings of a series of studies looking at the antibodies created by individuals who were infected by the coronavirus and then had an mRNA vaccine.
New studies look at how the mRNA vaccines affect the cells in your body in the short run and the long run. The findings are a counterpoint to concerns about waning immunity.
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.
Researchers found that a class of antibodies in a monkey's blood provides protection from COVID-19. If that hold true for humans, a blood test may predict whether a vaccine candidate is working.
More than 440,000 people have recovered from COVID-19 — and their status is an important question. If people are immune after recovery, they could resume normal life activities more quickly.
Among the questions this week: Can you get COVID-19 more than once? What's the maximum surface area that can be treated with one disinfecting wipe?