Epstein Barr Virus (EBV) 

Epstein-Barr Virus is a cancer causing virus in the herpes family and and is one of the most common viruses in humans.  Epstein-Barr virus occurs worldwide. It is known to cause infectious mononucleosis and is causes a number of cancer including Burkitt's Lymphoma and Nasopharageal carcinoma.  In addition, EBV is suspected to have a role in the pathogenesis of Multiple Sclerosis and other autoimmune diseases.

Merkel Cell Polyomavirus (MCV)

Merkel Cell polyomavirus is a tumor virus, belonging to the polyomavirus family of viruses.  It is suspected to cause the majority of cases of Merkel Cell Carcinoma, a rare but aggressive form of skin cancer.  MCV commonly infects older children and adults.