Michaeleen Doucleff

The CDC has published new information about how dangerous the delta variant is and the risk it poses to unvaccinated people. The research also indicates that vaccinated people can spread the variant.

A study from China offers clues as to why the delta variant of the coronavirus is spreading so quickly around the world. The highly contagious strain accounts for more than 80% of U.S. COVID-19 cases.

One of the scientists who signed a recent letter calling for more investigation of the lab-leak origin theory says new data has come to light. And that information has changed his thinking.

New analyses of the early days of the COVID-19 pandemic suggests the pandemic may have been spreading from inside the Huanan Seafood Market two months before doctors detected the first cases.

New research from China suggests people infected with the delta variant have, on average, about 1,000 times more virus in their respiratory tracts than those infected with the original strain.

20 years ago, scientists began to study a mysterious emotion known as awe. Now they believe awe offers a range of benefits when practiced regularly, calming our nervous systems and relieving stress.

If you've been feeling blah recently, you're not alone. The good news is you can retrain your brain to feel happier. Here's how to shift your mood and restore your well-being.

Jeff Nelligan, whose Maori great-grandmother left New Zealand and settled in the U.S., explains his parenting strategies in his book Four Lessons From My Three Sons: How You Can Raise Resilient Kids.

With the coronavirus vaccinations slowing infection rates in the U.S., we look at potential threats posed by new viruses.

A previously unknown novel coronavirus capable of infecting people has been discovered in Borneo, says a team of researchers from Duke University.

This animated video uses puzzle pieces to show how a coronavirus binds to a cell's surface — and what happens when a mutation occurs.

A coronavirus variant is spreading quickly in India, causing a massive surge in cases. Scientists are rushing to see if vaccines will be effective against this variant. So far, the news is hopeful.

A coronavirus variant is spreading quickly in India, causing a massive surge in cases. Scientists are rushing to see if vaccines will be effective against this variant. So far, the news is hopeful.

Scientists are trying to determine if the coronavirus variant in India could be the most transmissible variant known.

As India fights a staggering surge of COVID-19, some scientists suspect a reason for the record-breaking outbreak may be a new variant which spreads faster than any other seen so far.

If you imagine viruses as pieces of a jigsaw puzzle, that can help explain what happens when a coronavirus variant comes into contact with human cells.

The term is a reference to two particular mutations in SARS-CoV-2. But the variant in India could carry additional mutations.

For decades, the U.S. has spent many millions hunting down viruses in hope of stopping a pandemic. Yet the efforts failed. A group of researchers thinks there's a better strategy for the future.

There is a lot of information packed into the 300-page report on the origins of the pandemic released this week. Here are three key points that haven't received a great deal of media attention.

In many cultures around the world, parents don't need chore charts or allowances for kids to pitch in around the house. A new study shows how parents in these cultures teach children to be helpful.