VARICELLA ZOSTER IGG AB
- VARICELLA ZOSTER IGG AB
- Start Date
- Expiration Date
- VZV IgG Antibody, Chicken Pox Virus IgG Antibody, Herpes zoster IgG Antibody, Human Herpesvirus 3 (HHV-3) IgG Antibody
- CPT Codes
- Reference Test
- Transport Info
- Fasting Required?
- Patient Instructions
- Reference Range
≤ 0.8 AI = Negative - No IgG antibodies specific to Varicella-zoster virus detected. Patient is presumed not to have had a previous exposure to Varicella-zoster virus through infection or vaccination
0.9-1.0 AI = Equivocal results; obtain an additional sample for re-testing.
≥ 1.1 AI = Positive - IgG antibody to Varicella-zoster virus detected. This may indicate that the patient was exposed to Varicella-zoster virus through infection or vaccination.
AI = Antibody Index
This test is not intended to be diagnostic for infectious disease and should only be utilized to establish serological status of the patient to Varicella-zoster virus.
Positive results may be found in patients that have not been immunized. In these cases, the patient has a positive serological status to the infectious agent through natural exposure. False positive results may occur. Repeat testing or testing with a different device may be indicated in some settings, e.g., patients with low likelihood of prior infection or vaccination.
Multiplex Flow Immunoassay (MFI)
Diagnose clinical infections with varicella or herpes zoster
Assess immune status of individuals exposed to varicella, especially pregnant women
Varicella (i.e., chickenpox) is a highly contagious disease caused by Varicella-zoster virus (VZV). VZV causes a systemic infection that usually results in lifetime immunity. In otherwise healthy persons, clinical illness after re-exposure is rare. However, as with other viral diseases, re-exposure to wild-type VZV may lead to reinfection that boosts antibody titers without causing clinical illness or detectable viremia.