HEPATITIS B ANTIBODIES Meaning and
Definition
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Hepatitis B antibodies, also referred to as HBsAb or anti-HBs, are proteins produced by the immune system in response to the presence of the hepatitis B virus (HBV). Hepatitis B is a viral infection that primarily affects the liver and can lead to acute or chronic forms of hepatitis.
When a person is exposed to HBV, their immune system recognizes the virus as a foreign invader and mounts an immune response. One important aspect of this response is the production of specific antibodies called hepatitis B antibodies. These antibodies are designed to target the surface protein of the virus known as the hepatitis B surface antigen (HBsAg).
The presence of hepatitis B antibodies in the blood indicates previous exposure to HBV, whether through vaccination or a past infection. These antibodies serve as an indicator of immunity and protection against subsequent HBV infection. The presence of hepatitis B antibodies suggests that the individual has successfully cleared the virus and developed immunity.
Hepatitis B antibodies are typically measured through serological testing, which can determine the presence and level of these antibodies in the blood. This testing is critical in evaluating the effectiveness of hepatitis B vaccination or in determining the immune status of individuals who may be at risk for HBV infection. Positive results for hepatitis B antibodies often indicate immunity to the virus, providing reassurance and peace of mind for individuals who may face potential exposure to HBV.
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