Home / Blood Tests / Hepatitis B: HB Core Antibodies (HBc Total)

Hepatitis B: HB Core Antibodies (HBc Total)

Overview of Hepatitis B Core Antigen (HBcAg)

Hepatitis B core antigen (HBcAg) is a non-glycosylated protein (p22) that makes up the nucleocapsid—or virus core—of the hepatitis B virus (HBV). This antigen plays a key role in the replication and life cycle of the virus and is a vital marker used in hepatitis B diagnostics.

Antibody Response to HBcAg

During an active hepatitis B infection, the body produces antibodies against HBcAg. These antibodies, known as anti-HBc, typically appear shortly after the onset of infection, often around the same time or soon after the hepatitis B surface antigen (HBsAg) becomes detectable in the bloodstream.

Persistence of Anti-HBc Antibodies

Anti-HBc antibodies generally remain in the blood for life, even after recovery from the infection. Their long-term presence makes them an important indicator of past or current hepatitis B infection in patients from Slough and surrounding areas seeking reliable private blood testing services.

Role of IgM Anti-HBc in Acute and Chronic Hepatitis B

IgM antibodies to HBcAg are particularly important in identifying the active phase of hepatitis B. These antibodies appear during viral replication and can continue to be present in the bloodstream for weeks or months after viral activity has declined. Elevated levels of anti-HBc IgM are most commonly observed in cases of acute hepatitis B and during flare-ups in individuals with chronic hepatitis B.

Local Hepatitis B Testing Services in Slough

For those in Slough, Windsor, Maidenhead, and nearby areas, private blood tests for hepatitis B—including HBcAg and anti-HBc IgM—are available at trusted diagnostic centres. Early and accurate testing is essential for monitoring liver health and managing hepatitis B infection effectively.

There is an additional £20 phlebotomy fee for every donation.