Each of the new cells carried the genetic marker from the mouse virus.

In the mid-1980's, when Dr. Wilson joined the field, a disabled mouse virus was everyone's favorite candidate.

"Scientists conclude mouse virus does not cause ME."

How did a mouse virus get into this cell line in the first place?

With the new therapy, scientists plan to start with a mouse virus that has been modified so that it won't cause disease.

The panel members considered whether there was a chance that the recombinant mouse virus could somehow become activated into a dangerous form once inside the patient.

Unfortunately, those lines are deteriorating and are potentially contaminated with mouse viruses, limiting their usefulness.

Three decades ago, the mouse virus was nettlesome to scientists seeking viral causes of cancer.

When they grew various animal viruses in laboratories, the mouse viruses often popped up.

XMRV is a mix of two type of mouse virus.