Health officials say there's very little risk to humans from the bird flu outbreak among dairy cattle, but there's still much they don't know. Here are four questions scientists are trying to answer.

The pandemic state of emergency was lifted but there are still plenty of viruses to worry about. Here are some highlights of our viral coverage this year, including NPR's "Hidden Viruses" series.

Pigs and goats likely catch it too. It's been found in humans' noses in the Southwest — and in the air at airports and at chicken farms in Malaysia.

livestock in Colombia are raised on vast, open ranges. Overseeing the herds requires the special skills of Colombian cowboys who are known as llaneros — Spanish for "plainsmen."

The Gulf Livestock 1 reportedly capsized in heavy seas near the island of Amami Oshima just as a typhoon was passing through the area. Only one crew member is known to have survived.

Oat crops are grown across Georgia along with other cereal grains like rye and wheat. But you won’t find them in your cereal bowl.