Severe herpes virus (HSV-2) infection in two patients with myelodysplasia and undetectable NK cells and plasmacytoid dendritic cells in the blood.

Background: How the immune system contains herpes simplex virus (HSV) infections is partly understood. T cells from infected persons proliferate in response to HSV antigens in vitro and may control local relapse rather than primary infection. NK cells have been involved in the control of experimental infections.