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Hepatitis B Surface Antibody, Qualitative details

What Hepatitis B Surface Antibody, Qualitative shows

Hepatitis B surface antibody (anti-HBs) is the antibody your immune system makes against the outer surface protein of the hepatitis B virus. It develops after successful vaccination or after recovering from a past infection. This qualitative test reports whether anti-HBs is present at a protective level, rather than giving an exact amount. A positive result generally indicates immunity to hepatitis B. A negative result can mean you have never been vaccinated or exposed, did not respond to vaccination, or your antibody levels have waned. It does not show whether immunity came from vaccination or past infection, so it is interpreted alongside other hepatitis B markers such as core antibody and surface antigen.

Tests that include Hepatitis B Surface Antibody, Qualitative

Labcorp Not offered
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