There are several types of viruses associated with hepatitis and/or HCC.

Of those infected, three in four carried type 18, the virus associated with aggressive cancers.

"If you have a virus associated with neck and head cancer," he said, "that's one more reason to quit smoking."

This attempts to avoid the higher risks of overdose, infections and blood-borne viruses associated with injecting the drug.

The nation's influenza watchers are forecasting a worse-than-usual flu season as a virus associated with high death rates makes sporadic appearances around the country.

In addition to the herpesviruses considered endemic in humans, some viruses associated primarily with animals may infect humans.

Dr. Neel's most recent research focused on viruses perhaps associated with genetic mutations that some researchers speculate could lead to cancer.

All other viruses associated with gastroenteritis are non enveloped.

The mosquito group can be divided into two branches: one branch contains the neurotropic viruses, often associated with encephalitic disease in humans or livestock.

Willing to sacrifice herself, she was infected with a deadly virus mysteriously associated with the Millennium Group.