Human herpesvirus 6 (HHV-6) was first isolated and characterized in 1986. It infects predominately T-lymphocytes of the CD4 (helper) type, but also B-lymphocytes, megakaryocytes, and probably other cells. It is the sixth described member of the Herpesvirus family (the others being HSV-1, HSV-2, EBV, CMV, and varicella-zoster). Infection takes place mainly in the first 2-3 […]