Image for VCA (viral capsid antigen)

VCA (viral capsid antigen)

Viral Capsid Antigen (VCA) refers to a specific protein found on the outer shell, or capsid, of certain viruses, notably the Epstein-Barr virus (EBV). This antigen plays a crucial role in the virus's ability to infect cells and elicit an immune response. When the body detects VCA, it can trigger the production of antibodies, which help fight the infection. Testing for VCA is often used in medical diagnostics to determine if someone has been infected with the virus, helping healthcare providers understand and manage the person's health.

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  • Image for VCA (viral capsid antigen)

    Viral Capsid Antigen (VCA) refers to a specific protein found on the outer shell, or capsid, of certain viruses, most notably the Epstein-Barr virus (EBV). These proteins are essential for the virus's structure and play a key role in its ability to infect host cells. In medical testing, detecting VCA can help diagnose infections and determine if someone has been exposed to the virus, as the presence of these antigens indicates an active or past infection. Understanding VCA is crucial in virology and helps guide treatment and prevention strategies for viral diseases.