Chronic fatigue syndrome, which affects 17 million people worldwide, has finally been linked to a specific pathogen: XMRV (xenotropic murine leukemia-related virus). XMRV is one of only three known human retroviruses, infectious agents that slip into our genome and become a permanent part of our DNA. Cancer biologist Robert Silverman of the Cleveland Clinic isolated XMRV three years ago in men suffering from prostate cancer.
展开▼
