Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) details
What Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) shows
This antibody targets the viral capsid antigen (VCA) of Epstein-Barr virus (EBV), the virus responsible for infectious mononucleosis, and its IgG form indicates past infection — it typically appears within a few weeks of infection and then persists for life, similar to how immunity develops after many viral infections. Since the vast majority of adults have been infected with EBV at some point (often in childhood, without notable symptoms), a positive VCA IgG mainly confirms past exposure rather than indicating a current issue; when a recent or active infection needs to be assessed, VCA IgM and EBV early antigen antibodies are more useful.
Tests that include Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG)
Epstein-Barr Viral Capsid Antigen (VCA) IgG Antibodies indicate past exposure or infection with Epstein-Barr virus (EBV). Presence of IgG antibodies reflects immunity or latent infection and helps assess immune status.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) An antibody indicating past infection with Epstein-Barr virus (the cause of mono); usually stays positive for life.
Epstein-Barr Viral Capsid Antigen (VCA) IgG Antibodies indicate past exposure or infection with Epstein-Barr virus (EBV). Presence of IgG antibodies reflects immunity or latent infection and helps assess immune status.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) An antibody indicating past infection with Epstein-Barr virus (the cause of mono); usually stays positive for life.
The Epstein-Barr Evaluation assesses several antibodies to the Epstein-Barr virus (EBV). It is performed to confirm active, past, or indeterminate infection for EBV-associated infectious mononucleosis.
- Epstein-Barr Virus Early Antigen (EA) Antibody (IgG) An antibody that rises during active or recent Epstein-Barr virus infection and typically fades over time, helping pinpoint how recent an infection is.
- Epstein-Barr Virus Nuclear Antigen (EBNA) Antibody (IgG) An antibody that appears months after Epstein-Barr virus infection and persists for life — its presence indicates a past, not recent, infection.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) An antibody indicating past infection with Epstein-Barr virus (the cause of mono); usually stays positive for life.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgM) An antibody that appears early in Epstein-Barr virus infection, helping identify a recent or current case of mono.
This test is used to detect infections caused by the Epstein-Barr virus (EBV), which is known for causing infectious mononucleosis, often referred to as mono. While mono is generally a mild illness in children and young adults, EBV can also lead to more serious conditions, including certain types of tumors.
- Epstein-Barr Virus Nuclear Antigen (EBNA) Antibody (IgG) An antibody that appears months after Epstein-Barr virus infection and persists for life — its presence indicates a past, not recent, infection.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgG) An antibody indicating past infection with Epstein-Barr virus (the cause of mono); usually stays positive for life.
- Epstein-Barr Virus Viral Capsid Antigen (VCA) Antibody (IgM) An antibody that appears early in Epstein-Barr virus infection, helping identify a recent or current case of mono.
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