A previously unknown virus may be the key to assessing the risk of colorectal cancer and improving diagnosis.

Travel advisories have been issued for the Seychelles, Bolivia, Cuba, Suriname and Sri Lanka due to chikungunya outbreaks.

The Nipah virus was spotted in India where it infected two people. No cases of the potentially lethal virus have been detected in the United States.

Because measles is so contagious, experts say that vaccination rates need to be above about 95 percent to stem the spread of ...

Over 95% of the world's adult population is infected with Epstein-Barr virus (EBV), but most people never realize it. The infection often causes few symptoms and then stays in the body for life.

A giant virus discovered in Japan is adding fuel to the provocative idea that viruses helped create complex life. Named ushikuvirus, it infects amoebae and shows unique traits that connect different ...

Norovirus can strike suddenly, leaving you feeling nauseous and exhausted. Here's what to know if it hits you this winter.

Chikungunya virus, a debilitating tropical disease caused by infected mosquito bites, poses a greater health threat in Europe ...

A new review tracks expanding chikungunya transmission, chronic sequelae, diagnostics, and prevention advances through 2025.

I spoke to a community group in October. I started with a question: What season is it? Holidays offer a good clue to the ...