the number of varicella zoster virus-infected mononuclear cells in blood samples obtained during 3 days before appearance of vesicular skin rashes could be estimated in 13 of 21 immunocompetent children with varicella and viremia ( range , 1-83 per 10 ( 7 ) mononuclear cells ) .
C0042338
varicella zoster virus
C0008049
varicella