Description
An immunologic test that detects IgA class antibodies to varicella‑zoster virus in the serum, which can rise during acute or reactivated infection.
Indications
To help identify recent or active VZV infection (chickenpox or shingles) versus past infection.
Sample Type, Quantity & Conditions
Serum
Special Precautions
Normal Range
Negative : < 20 U/ml Borderline : 20 - 25 U/ml Positive : > 25 U/ml