Flu season may be mostly behind us, but a nasty, highly contagious stomach bug is rising. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. In recent ...

Global health officials are tracking an outbreak of Ebola caused by a rare species of orthoebolavirus called the Bundibugyo virus that has so far killed more than 130 people and infected more than 500 ...

Here’s what to know about the symptoms and spread of the virus, which has sickened people in the Democratic Republic of Congo and Uganda. By Dani Blum Global health officials are raising alarms about ...

A newly discovered virus hiding inside a common gut bacterium could help explain one of medicine’s long-standing mysteries: why a microbe found in both healthy people and cancer patients is linked to ...

A virus that typically infects marine animals, such as shrimp and fish, has jumped to humans and is causing chronic eye disease in some people, according to a study published in the journal Nature ...

A virus that ordinarily affects marine animals has caused glaucoma-like symptoms and even irreversible vision loss in a small but growing group of people in China. This is the first known time that a ...

There’s a virus you may have never heard of before that is estimated to infect up to 90 percent of people and lurks quietly in your cells for life—but if it becomes activated, it will destroy your ...

Evidence suggests reactivations of the varicella-zoster virus may accelerate aging and raise dementia risk. Now scientists want to know if vaccines and antivirals could help protect the brain. In 2010 ...

If you notice that your office is emptying out, chances are it’s because a respiratory virus that few people have actually heard of is circulating throughout Northern California. Dr. Monica Gandhi, an ...

The gut bacterium Bacteroides fragilis has long presented researchers with a paradox. It has been associated with colorectal cancer, yet it also lives quite happily in most healthy people. A new study ...

A newly discovered virus hiding inside common gut bacteria may be linked to colorectal cancer, according to new research. Scientists in Denmark found that colorectal cancer patients were about twice ...