The H5N1 influenza virus, also known as "bird flu," may well be more prevalent and less deadly than health officials had thought, according to a new study publi

Scientists have found a new influenza virus that infects bats. But don't pull out the hand sanitizer leftover from the H1N1, or swine flu, pandemic just yet. Wh

The new process may provide a revolutionary, all-purpose flu vaccine.

Actor's comments during the Golden Globes did not sit well with the Centers for Disease Control and Prevention.

Getting a flu shot may reduce the risk of major heart problems, such as heart attacks or unexpected chest pain.

A 20-year-old woman in Taiwan is the first person known to be infected with a strain of bird flu called H6N1.

Women have a stronger immune response than men when given the flu vaccine.

An attempt to identify flu outbreaks by tracking people's Google searches about the illness hasn't lived up to its initial promise.

Officials are worried that a group of people in the Amazon who had been living in isolation from the outside world may have contracted the flu.

The CDC issued a warning that a mutated flu strain might make this year's vaccine less effective.

Wearing a surgical mask can stop you from getting the flu, provided you're very diligent about it.

Stomach flu, or viral gastroenteritis, can be as common as a cold. Here are some home remedies for the stomach flu to ease discomfort.

Dr. Don Milton's Gesundheit machine collects the breath exhaled by a sick person so researchers can study how viruses are spread.

From garlic to hand washing, here's what you need to do to stay healthy this year during cold and flu season.

This clip is part of an ongoing project to answer the question, 'What if animals were round?'

The suffering of New Orleans offers valuable lessons -- but is the U.S. paying attention?

As Make It Right passes the halfway mark with 76 affordable green homes built in New Orleans, the foundation throws a fundraising fête to help ensure that the

Actor and comedian co-host massive fundraiser to benefit the green rebuilding of New Orleans Lower 9th Ward.

The treated lumber found in 30 of the New Orleans homes built by Brad Pitt's green rebuilding nonprofit, Make It Right, is prematurely decaying.

The severity of two big winter storms from 2010 are compared, stat by stat. Which one emerges as the true snow storm of the year?

After sweeping through the Midwest the day after Christmas, a winter storm is expected to dump two feet of snow in the Northeast.

In a push to save money and lives this winter, four U.S. states are dispatching smart snowplows.

The storm's huge expanse across nearly two-thirds of the country was clearly visible in NASA satellite imagery.

It's been nearly 20 years since Texaco left Ecuador, but evidence of its presence remains in the form of toxic black gunk in the soil and water.

The cat-carried parasite Toxoplasma gondi has been associated with a variety of illnesses, but you can take simple precautions.

The light from the moon influences more than you might suspect, including animal behavior and farming.

Martian water would be vital for human visitors, and it's also an important clue in our search for signs of alien life.

The movie "Hidden Figures" is the story of the African-American trailblazers who helped win the space race. Now NASA is naming a building after one of them.

Acoustic engineer Trevor Cox is on a mission to identify the most wondrous sounds on Earth.

We don’t think that people who want to eat organic should have to pay more for their food.

Will one conservation photographer's images be enough to save an important protected area from development?

How to help provide people on every continent with food that is safe, affordable, and sustainable for people and planet.

For decades, Proenneke lived in a handmade cabin at Alaska's Twin Lakes; his writings and films have left a legacy.

With Earth Day now behind us, it’s time to take another look at the steps we are taking to be a more sustainable company.

Walmart's recent partnership with Plug Power is helping the company meet its three major sustainability goals.

Collaboration is the key as Walmart works with some of the world's largest corporations to address global sustainability challenges.

Meet the leaders of the maker movement, the bright entrepreneurs paving the way for the age of homespun inventions.

The “Walmart Advanced Vehicle Experience” concept truck aims to demonstrate a wide range of cutting-edge technologies and designs.

Our sustainability commitments help us cut costs so we can pass those savings on to our customers

Watch this replay webcast of Walmart's Global Sustainability Milestone Meeting.

Company will focus on four pillars to advance the sustainability of its biggest product category, food

Talia Frenkel created a company that makes healthier condoms — but that's not all.

Program in Alberta helps humans peacefully coexist with often dangerous wildlife.

Habitat loss is devastating rare species worldwide, but as the success of wildlife corridors suggests, a little connectivity can go a long way.

Howard Wood wins Goldman Environmental Prize for his work to save marine ecosystems from damaging commercial fishing practices.

Cynthia Gentry believes playgrounds for all ages are the way to a more creative community.

How one U.S. businessman is using his startup to bring clean water and hope to drought-stricken Kenyan communities.

Research by these women has changed the way we think about space — from dark matter to the search for extraterrestrial intelligence.

When black widow spiders mate, the females often kill and eat the males. But the male spiders have found a way around this terrible fate.

Want to get paid more at work? Stop being so nice. A new study found that agreeable women get paid less than everyone else at the office – even other women.