Scientists are closely watching SARS-CoV-2 to track mutations and see if it's developed into different strains. So, has it?

If you’re getting restless from social distancing and wishing you could do more to help fight the global pandemic, here are some ways that you can help scientists fight COVID-19—all from the comfort of your home.

Near the end of 2020, we got some puzzling but good news: COVID-19 fatality rates have been dropping. Here are a few factors that might help explain why we’re seeing this trend.

COVID-19 has the potential to ebb and flow with the seasons, but because it's a novel pandemic, that doesn't mean we're off the hook this summer.

Several COVID-19 variants are acting uniquely enough to qualify as a distinct strain. And you might have heard about one on the news: the Delta variant. Today we’re going to talk about what it is, why it’s here, and what you need to know...

There's another theory about the Covid-19 pandemic going around, and while it is pretty cool, it's not exactly the solution some are suggesting it might be.

Some potentially good news on the COVID-19 treatment front: Thanks to a technique that’s more than a century old, recovered COVID-19 patients may be in a position to help the rest of us -- with their blood plasma.

It will probably be at least a year before we have a vaccine for COVID-19. But in March, the WHO launched a megatrial tolook at four treatment options for the virus.

SARS-CoV-2 is super contagious, and researchers don’t yet know all the reasons why. But by comparing this new virus to the similar one that causes SARS, we’ve found a lot of promising leads that could help us figure out how to beat this...

For many, COVID has been a devastating virus, but there are people who don't exhibit any symptoms at all. Why is that?

Multiple companies and organizations have announced early results about their COVID-19 vaccines. Here's what we know about Pfizer's.

Scientists have been researching whether or not antibodies from COVID-19 patients might help those infected with the virus, and one study has found promising results, in a llama.

It's been just about a year now since we first heard about COVID-19, and while we've learned a lot since then, there are still some big questions we'd like answered. Here are three of them.

We will get out of this pandemic, says Maria Van Kerkhove, the COVID-19 Technical Lead of the World Health Organization (WHO). The question is how fast -- and if we'll take what we've learned from the past two years and apply it to the...

The list of symptoms for “Long COVID” are even more vast than the opinions about the right name for the condition. But the more we learn about it, and how it is similar to other post-infection syndromes, the better we can help those who...

Humanity now has incredible power to shape nature and the Earth: the power to destroy and the power to repair, says sustainability champion and UNDP Administrator Achim Steiner. In this action-oriented talk, Steiner shows how this power...

New variants of SARS-CoV-2 have emerged throughout the COVID-19 pandemic, with the latest one being Omicron. We’re still trying to learn about its effects and what it means for the overall course of the pandemic, but here’s what we know...

Researchers think the virus behind COVID-19 may have multiple ways into cells—which could help us understand how it behaves.

The Johnson & Johnson COVID-19 vaccine is now the third approved for emergency use authorization in the United States, and it's a little different from its predecessors.

Certain cognitive biases cause humans to make unsafe decisions in a pandemic, making a terrible disease even worse.

An overview of a simplified version of the DP-3T algorithm for privacy-first contact-tracing

We tend to think of COVID-19 as a lung infection, but there's more evidence that it might also be affecting the hearts of healthy athletes without them even knowing it.

Right now, experts say a vaccine for COVID-19 is a year or more away. But as far away as it sounds, it’s only within the realm of possibility because scientists are speeding up the vaccine development process in surprising ways.

As we react to the predictions that epidemiological models make, changing the ways we act and go about our lives, those estimates can appear totally off. But if a model’s predictions end up being wrong, that might mean it's done exactly...