A stricter FDA policy for COVID vaccines could limit future access
Federal officials unveiled a rigorous regulatory approach to future COVID vaccines that could make it harder for many people under 65 to get immunized.
SARS-CoV-2
How the pandemic changed the world of disease control for worse -- and for better
Five years after the World Health Organization declared a global pandemic, there has been progress — and backsliding in the way the world responds to infectious disease.
COVID is still evolving and will find new ways to evade immune systems, scientists say
SARS-CoV-2 has been evolving the ability to evade the immune system about twice as fast as the fastest-evolving flu virus. It averages more than a dozen significant changes every year.
Quiz: Can you pass our 9 question test on the latest theories of COVID-19 transmission
The World Health Organization has issued a report updating terminology and explanations regarding the spread of the novel coronavirus. See if you're up on the latest vocab.
Coronavirus FAQ: 'Emergency' over! Do we unmask and grin? Or adjust our worries?
Now that official COVID emergency declarations have ended, how should people evaluate their risk of SARS-CoV-2? That's the subject of our frequently asked questions offering.
What does the science say about the origin of the SARS-CoV-2 pandemic?
Two U.S. intelligence agencies reportedly support the lab leak theory — with low-to-moderate confidence. No evidence has been shared. Scientists have strong evidence of animal spillover at a market..
How do pandemics begin? There's a new theory — and a new strategy to thwart them
Animals carry millions of pathogens. So it's a daunting task to find the one with the greatest potential to spark a pandemic. Now scientists are rethinking the way they hunt for that next new virus.
QUIZ: Test your knowledge of spillover viruses, starting with ... what are they?
As we launch a series about spillover viruses — like SARS-CoV-2, which triggered a global pandemic, you may have a lot of questions. So do we — 7, to be exact, in the quiz below.
Why China's 'zero COVID' policy is finally faltering
For nearly three years, China has enforced incredibly strict rules to keep coronavirus transmission in check. But now they're facing a potentially deadly omicron surge.
An elegant way to stop deadly Hendra virus spillovers from bats to horses ... to us
New research points to a surprising way to stop spillovers of Hendra virus, which is harbored by bats. It's not often that it jumps to horses, then humans, but when it does, the result are brutal.