Federal health officials say at least 45 people in 18 states have been sickened in an expanding salmonella outbreak tied to recalled cucumbers.

Scientists say 4 billion people experienced at least one extra month of extreme heat because of human-caused climate change ...

During the winter, doctors see patient after patient with cold and flu symptoms. Here's how they avoid getting sick—tips you ...

We don’t just cure diseases—we interpret them. John Green’s book shows how our views on illness reveal our deepest beliefs ...