Varicella-Zoster Antibody, IgG


A healthy result should fall into the range 1.1 - 10 AI.

The Varicella-Zoster Antibody (IgG) test looks for antibodies in your blood that your body makes against the varicella-zoster virus. It is very contagious. Varicella-zoster virus, a herpesvirus, causes two distinct rash-associated diseases:

– chickenpox (varicella)

– shingles (herpes zoster).

First time infection: Chickenpox

When you become infected with the virus for the first time, it causes chickenpox.

Chickenpox is a highly contagious, though typically benign disease, usually contracted during childhood.

After having chickenpox, most people become immune to the virus for the rest of their life. They cannot get chickenpox again.

Virus becomes dormant: Shingles potential later in life

After the first illness, the virus becomes dormant and “hides” in nerves in your body. Later in your life, the virus can become active again. It causes a painful rash called shingles, or herpes zoster. Shingles is an extremely painful condition typically occurring in older nonimmune adults or those with impaired cellular immunity.

Varicella-Zoster Antibody, IgG result calculator

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