Unassayed external control to monitor the absence of Anaplasma phagocytophilum, Babesia microti, Bartonella quintana, Borrelia burgdorferi, Ehrlichia chaffeensis, Enterovirus (EV) Coxsackievirus A9, HSV-1, HSV-2, and VZV for various molecular assays. (5 x 1.0 mL)